They may also feel your prostate gland through the wall of the back passage (rectum) order accutane 20 mg on-line acne quizzes. If you fnd it easier order accutane 10mg on line 302 skincare, you can stand and lean over the back of a chair or across the examination table instead buy discount accutane on line delex acne. They will wear gloves and put some gel onto their fnger to make it more comfortable. They will feel your prostate for any hard or irregular areas and to see whether the prostate is larger than expected for your age. Symptom questionnaire The urologist or specialist nurse may ask you to fll in a questionnaire about your symptoms. Urine fow test This involves urinating into a machine that measures the speed of your urine fow. Men with an enlarged prostate tend to have a slower speed of urine fow than men who don’t. The urologist or specialist nurse will tell you how much you need to drink beforehand. They may also ask you not to go to the toilet for two to three hours before the test. Ultrasound scan The doctor will examine your stomach area using an ultrasound scan. The scan will show how much urine is left in the bladder, so the doctor can tell whether your bladder is emptying properly. You may have it if other tests do not give a clear diagnosis, if you are considering surgery to treat an enlarged prostate, or if your symptoms have not improved after surgery. The tubes measure the pressure in your bladder, stomach area and urethra while your bladder is flled with a clear liquid. You may have this test if you have a history of urine infection, if you have blood in your urine, if your symptoms are severe, or if you are experiencing pain. You may also have this test if your doctor suspects that you have a narrowing in the urethra or bladder neck (called a stricture). The doctor or specialist nurse will pass a thin tube with a light at the end through your penis into your bladder. Local anaesthetic gel is used so that you won’t feel pain, although you will still feel the tube passing through you. The tube may have an eye piece for them to look through or a camera on the end so that they can see the urethra and bladder on a screen. The doctor or specialist nurse will then weigh the pad to work out how much urine has leaked. Summary • You may have several different tests to fnd out whether you have an enlarged prostate. If you are diagnosed with an enlarged prostate, your doctor or specialist nurse will look at your test results – together with your medical history and personal preferences – and recommend the best treatment options for you. They will discuss these options with you to help you decide what is right for you. If one type of treatment is no longer controlling your symptoms, or if you are having problems with side effects, they might suggest another type of treatment. There are three main types of treatment for an enlarged prostate: • lifestyle changes • medicines • surgery. Lifestyle changes If your symptoms are not having a big impact on your life and you have no complications, the best approach may be to try changing your lifestyle and wait and see how your condition develops. If you opt to try lifestyle changes, you may have regular check-ups to discuss your symptoms. I always took ages to empty my bladder and felt that everyone would notice and wonder why I had been gone so long. Move your fngers forward toward the base of the penis under the scrotum and keep pressing gently. It can help to release any urine that is left in your urethra and prevent dribbling. Medicines If lifestyle changes are not enough to improve your quality of life, medicines may help control your symptoms. It is important to let your doctor know about any medicines or herbal remedies you are already taking, in case they interfere with the medicines for an enlarged prostate. The main types of medicine for an enlarged prostate are: • alpha-blockers • 5-alpha-reductase inhibitors. If you are taking medicine for an enlarged prostate, you will have regular check-ups to discuss your symptoms, the effect of the medicine on your day-to-day life and any side effects. Around two thirds (66 per cent) of men taking alpha-blockers fnd that their symptoms improve. Symptoms may start to improve within hours or days but you may need to take alpha-blockers for a few weeks before they have their full effect. Alpha-blockers are usually the frst type of medicine you will be offered, unless your prostate is very large. If your symptoms have not improved after about four to six weeks, alpha-blockers are unlikely to help you and your doctor may recommend another treatment. The most common ones are called: • tamsulosin (brand names Flomaxtra®, Diffundox®, Flomax Relief®, ® ® Pinexel , Stronazon ) • alfuzosin (brand names Xatral®, Besavar®) • doxazosin (brand names Cardura®, Doxadura®) ® • terazosin (brand name Hytrin ). All of the alpha-blocker medicines work in the same way and are equally effective at controlling symptoms of an enlarged prostate. Read the information leafet that comes with your medicine for more information, or speak to your doctor, specialist nurse or pharmacist. They can shrink the prostate gland by up to a quarter (15 to 25 per cent) after 6 to 12 months of treatment. They usually take three to six months to work fully, but they are effective at improving symptoms in the long-term. Studies show that men can continue to see improvement in their symptoms up to four years after starting treatment. They also reduce the long-term risk of acute urine retention (see page 10) and the need for surgery. They are usually the frst type of medicine you will be offered if your prostate is very large. These effects are mainly linked to sexual function and they are most common during the frst year of treatment. Possible side effects include: • Problems getting and keeping an erection (erectile dysfunction) This affects 4 or 5 out of 100 men (4 or 5 per cent). Sometimes semen can pass into the bladder rather than out through the penis (retrograde ejaculation). Your doctor, specialist nurse or pharmacist can give you more information about side effects of the 5-alpha-reductase inhibitor you are taking.

Most chapters start with a title order accutane without a prescription acne fulminans, a brief description of the topic buy accutane pills in toronto skin care 2020, common clinical signs and symptoms of each disease generic accutane 40mg on-line acne 1cd-9, the diagnosis and differentials, investigations, treatments and supportive care. The medicines will be used to treat the majority of public health problems and they should be available to health facilities at all time. The guideline also makes provision for referral of patients to higher health facilities. The indices for all medicines used are found at the back of the guide book, together with the information on how to report the adverse drug reactions. The guideline also, makes provision for referral of patients to higher health facilities see the referral form. The last pages of the guideline contain annexes, references as well as the Essential Medicines List. Comments that aim to improve these treatment guidelines will be appreciated all the time and the form for that purpose is appended. Any pain of moderate or higher intensity is accompanied by anxiety and the urge to escape or terminate the feeling. In non- or pre verbal children, facial expression is the most valid indicator of pain; therefore use faces pain scale to assess severity. Children A: Paracetamol 15 mg/kg/dose 4–6 hourly when required to a maximum of 4 doses per 24 hours; 1|P a g e 1 | P a g e 1. They have the broadest range of efficacy, providing the most reliable and effective method for rapid pain relief. Adults : C: Tramadol tablets or injection 50-100mg every 6 hours or until pain is controlled. Drug Treatment Mild Pain Adult: A: Paracetamol 1000 mg (O) 6 hourly until pain subsides Pain Associated with Trauma or Inflammation See under Trauma and Injuries section Moderate pain (Including neuropathy) Adults: If still no relief to simple analgesics as above, add C: Tramadol 50 mg (O) 4–6 hourly as a starting dose May be increased to a maximum of 400 mg daily Adjuvant therapy Adults: In addition to analgesia as above add antidepressants; C: Amitriptyline 25 mg (O) at night; Maximum dose: 75mg. Referral  Pain requiring strong opioids  Pain requiring definitive treatment for the underlying disease  All children 1. Therefore, before embarking on opioid therapy, other options should be explored, and the limitations and risks of opioids should be explained to the patient (For detailed information, refer to Malignant Disease chapter). There are three major categories of headaches:  Primary headaches,  Secondary headaches, and  Cranial neuralgias, facial pain, and other headaches Assessment of headache should be comprehensive for example to include  Age at onset  Presence or absence of aura and prodrome 3 | P a g e  Frequency, intensity and duration of attack  Number of headache days per month  Quality, site, and radiation of pain  Associated symptoms and abnormalities 2. It is more common in females than in males often there is a family history of migraine. In severe attack give: C: Ergotamine tartrate 1-2 mg, maximum 4mg in 24hours, not to be repeated at intervals less than 4 days. Referral  Patient with additional neurological signs or additional risk factors for an alternate diagnosis, such as immune deficiency. These patients require brain imaging  Sudden onset of a first severe headache may indicate serious organic pathology, such as subarachnoid hemorrhage  Acute migraine, not responding to treatment  Recurrent migraine not controlled with prophylactic therapy Tension headaches While tension headaches are the most frequently occurring type of headache, the cause is most likely contraction of the muscles that cover the skull. Common sites include the base of the skull, the 4 | P a g e temple and the forehead. Tension headaches occur because of physical or emotional stress placed on the body. Diagnosis  The pain begins in the back of the head and upper neck and is described as a band-like tightness or pressure. Note:  The key to making the diagnosis of any headache is the history given by the patient  If the health care practitioner finds an abnormality, then the diagnosis of tension headache would not be considered until the potential for other types of headaches have been investigated. Treatment Tension headaches are painful, and patients may be upset that the diagnosis is "only" a tension headache. Even though it is not life-threatening, a tension headache can affect the activities of daily life. Thus, the headache becomes a symptom of the withdrawal of medication (rebound headache). Cluster headaches Cluster headaches are headaches that come in groups (clusters) lasting weeks or months, separated by pain-free periods of months or years. Some evidence shows that brain scans performed on patients who are in the midst of a cluster headache, shows abnormal activity in the hypothalamus. Cluster headaches:  May tend to run in families and this suggests that there may be a genetic role  May be triggered by changes in sleep patterns  May be triggered by medications (for example, nitroglycerin) 5 | P a g e If an individual is in a susceptible period for cluster headache, cigarette smoking, alcohol, and some foods (for example, chocolate) also can be potential causes for headache. Diagnosis  Pain typically occurs once or twice daily and last for 30 to 90 minutes  Attacks tend to occur at about the same time every day  The pain typically is excruciating and located around or behind one eye. The affected eye may become red, inflamed, and watery Note: Cluster headaches are much more common in men than women. Stopping smoking and minimizing alcohol may prevent future episodes of cluster headache. Early diagnosis and treatment is essential if damage is to be limited Examples of Secondary headache:  Head and neck trauma  Blood vessel problems in the head and neck 1. Temporal arteritis (inflammation of the temporal artery)  Non-blood vessel problems of the brain 6 | P a g e 1. Idiopathic intracranial hypertension, once named pseudo tumor cerebri,  Medications and drugs (including withdrawal from those drugs) Infection 1. Systemic infections Diagnosis  If there is time, the diagnosis of secondary headache begins with a complete patient history followed by a physical examination and laboratory and radiology tests as appropriate  However, some patients present in crisis with a decreased level of consciousness or unstable vital signs. In these situations, the health care practitioner may decide to treat a specific cause without waiting for tests to confirm the diagnosis 3. Infections are the most common cause of fevers, however as the temperature rises other causes become more general. Note: Hyperpyrexia is considered a medical emergency as it may indicate a serious underlying conditions. Where causative/precipitating factors cannot be detected, the following treatments may be offered: For Non-productive irritating cough A: Cough syrup/Linctus (O) 5-10 ml every 6 hours Expectorants may be used to liquefy viscid secretions. A: Cough expectorants (O) 5-10 ml every 6 hours Note: Antibiotics should never be used routinely in the treatment of cough 5. Some investigations must be ordered:  Serum glucose level  Serum electrolyte  Pregnancy test for women of child bearing age. Therefore, the following are primarily assessed in children:  Prolonged capillary filling (more than 3 seconds)  Decreased pulse volume (weak thread pulse)  Increased heart rate (>160/minute in infants, > 120 in children)  Decreased level of consciousness (poor eye contact)  Rapid breathing  Decreased blood pressure and decreased urine output are late signs and while they can be monitored the above signs are more sensitive in detecting shock before irreversible. Table 2: Types of Shock Type of Shock Explanation Additional symptoms Hypovolemic Most common type of shock Weak thread pulse, cold Primary cause is loss of fluid from circulation due and clammy skin. Cardiogenic Caused by the failure of heart to pump Distended neck veins, shock effectively e. Septic shock Caused by an overwhelming infection, leading to Elevated body vasodilatation. Anaphylactic Caused by severe allergic reaction to an allergen, Bronchospasm, shock or drug. Intravenous fluid therapy is important in the treatment of all types of shock except for cardiogenic shock. Ringer-lactate, within 48 hours of administering ceftriaxone  Contra-indicated in neonatal jaundice  Annotate dose and route of administration on referral letter. There are three types of dehydration: hypotonic or hyponatremic (primarily a loss of electrolytes, sodium in particular), hypertonic or hypernatremic (primarily a loss of water), and isotonic or isonatremic (equal loss of water and electrolytes).

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There will cheap accutane 5mg on-line acne yellow sunglasses, for example generic accutane 5mg free shipping acne after shaving, be very different challenges faced by primarily producer best accutane 40mg acne wallet, transit or consumer countries, states with different levels of economic resources, political stability and public health and enforce- ment infrastructure, and states that are geographically isolated, compared to those with large borders with highly populated regions. Cannabis is likely to be the frst drug to have regulatory models more seriously explored. At the other end of the spectrum, around problematic dependent use of opiates and stimulants, we are likely to see medicalised maintenance 29 R. Newcombe, ‘Attitudes to drug policy and drug laws; a review of the international evidence’, Transform Drug Policy Foundation, 2004. These models will be based on already established, functional and effective interventions in numerous countries. These two emerging trends are already defning an ongoing pragmatic reform process —addressing the areas of most pressing practical necessity where prohibition’s effects are the most egregious, in population terms (cannabis) and overall harm creation (chaotic use/dependence). Within broad groupings of similar types of drugs—stimulants, depres- sants or hallucinogens (see: chapter 5)—we might reasonably expect regulated legal availability pilots to begin by focussing on the drugs least likely to be associated with personal or social harms and costs (see: 4. Similarly, less potent preparations of drugs, for use through lower risk methods of administration, could be made available in the frst instance. First, such rankings should inform policy makers, so that they can develop effective, targeted and proportionate policy responses to a range of different drug harms, which can thereby be managed and minimised. This is an essential element of developing effective regula- tory frameworks and inevitably requires a degree of population based generalisation. The second is to facilitate the education of individuals about drug risks and harms, so enabling them to make informed and responsible decisions about their health and wellbeing. Getting to grips with these questions requires that two important 70 4 5 6 Making a regulated system happen Regulated drug markets in practice Appendices distinctions are made. First of all, primary health harms to individual users should be distinguished from the secondary social harms to third parties that follow from that use. Second, harms related to drug use per se (both primary and secondary) should be distinguished from harms created or exacerbated by policy environments. The prevailing analysis that informs most current policy makes the frst distinction (between health and social harms) reasonably well, but largely fails to make the second distinction (between drug harms and policy harms). It confuses and confates the two, often misattributing prohibition or illicit market harms to drugs, or by default drug users, and feeding the self-justifying 30 feedback loop that has helped immunise prohibition from scrutiny. Some efforts to untangle drug use harms from drug policy harms have been made, although this is an area that warrants more detailed consid- eration and analysis. Correspondingly, the Transform report then makes a distinc- tion between the aims of the drug policy reform movement—to reduce or eliminate the harms specifcally created or exacerbated by prohibi- tion and illicit markets—and the more conventional aims of an effective drug policy—to reduce or eliminate the range of direct and indirect harms associated with drug use and misuse. A more comprehensive ‘taxonomy of drug-related harms’ has been 32 constructed by MacCoun and Reuter who break down forty six iden- tifed drug-related harms into four general categories: ‘health’, ‘social and economic functioning’, ‘safety and public order’, and ‘criminal justice’. Whilst these systems have some functionality, they are frequently both inconsistent and oversimplifed. On a practical level, they are built on generalisations, they (confusingly) fail to include legal drugs, and both confate and fail to fully acknowledge multiple harms; this has substantially reduced their utility, both as policy making tools, and as aids to individual users seeking to make informed decisions about personal drug use. Before discussing these issues and their policy implications in more detail it is worth trying to deconstruct the main vectors of harm associ- ated with drug use specifcally (as distinct from harms related to drug policy) that policy makers must consider. The level of risk associated with a given drug’s toxicity and propensity to cause dependence is then moderated by a series of behavioural variables, and by the predispositions of the individual user. A drug’s acute toxicity relates to the size of the margin between an active threshold, the dose at which the drugs effect (or desired effect) is achieved by the user, and the dose at which a specifed toxic reaction, or overdose, occurs. Such a toxic reaction could involve merely unpleasant temporary side effects, such as vomiting, dizziness, fainting, distress, etc. The comparable terminology for medical drugs is the ‘therapeutic index’, which is the ratio of the therapeutic dose to the toxic dose. With non-med- ical drugs acute toxicity of a given drug is often measured by assessing the ratio of lethal dose to the usual or active dose. The smaller this gap between active and toxic dosage, the more toxic a drug is deemed to be. Other methods for measuring toxicity, such as sub-lethal toxic effects, also exist; all are clear and relatively simple. When ranking drugs, however, issues of acute drug toxicity are compli- cated by a number of behavioural variables, most obviously including mode of drug administration, and poly-drug use. It is especially hard to establish individual effect causality in the context of a range of lifestyle variables, and use of multiple drugs. Even when credible esti- mates or measurements can be made of long term effects, the problem arises that rankings of drugs by acute and chronic toxic effects do not necessarily match up. For example, it is diffcult to compare tobacco smoking, which involves low acute risk but high chronic risk, with opiate use, which has high acute risk but lower chronic risks. Drug addiction, or drug dependence as it is generally now described, is a diffcult concept to precisely defne, or to achieve consensus on. However, more agreement does exist on the physiological components of drug dependence, described in terms of brain chemistry (neurotransmitters, receptors, etc. These physiolog- ical components have been well described in the medical literature of the last century (for established drugs at least, if not perhaps so well for more recently emerging ones), and are now well understood. An additional physiological aspect of drug action that impacts on dependence is its half life, which measures how long the drug effect lasts. The qualita- tive nature of the initial onset of the intoxication experience, or ‘rush’, and the post-rush experience—the subjective pleasure associated with using the drug—are also important variables. They are, however, harder to objectively quantify, and also dependent to a signifcant extent on drug preparation, dosage and mode of administration. However, while the physiological elements of drug action as it relates to dependence can be assessed and potentially ranked, dependency issues are dramatically complicated by the individual user, and the range of psycho-social factors that interface with physiological processes. This interaction produces dependency-related behaviours, which may require the attention of policy makers and service providers. The psycho-social infuences upon, or components of dependency relating to, a given drug are far harder to quantify and rank, and far more contentious in the literature. For example, psychological dependence— ‘addiction’—is now also associated with sex, shopping, gambling, the 34 internet and so on. These psycho-social components are, however, arguably no less important in terms of determining behaviours. Some drugs that have relatively moderate or low physiological dependency effects are none the less frequently associated with powerful psychological depen- dency, cocaine being an obvious example. Whether physiological and psychological dependence should be pooled together in rank- ings remains a moot point—as does the question of whether ‘addiction’ remains a useful term, as opposed to dysfunctional, problematic or dependent use. Alexander, ‘The Globalisation of Addiction: A Study in Poverty of the Spirit’, Oxford University Press, 2008. In particular, risk assessment is made more diffcult by the wide variation in physiological and psychological makeup of individual drug users.

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Strong recommendation buy discount accutane 20mg on line acne used cash, high-quality evidence 12 Antimalarial drug quality National drug and regulatory authorities should ensure that the antimalarial medicines provided in both the public and the private sectors are of acceptable quality order 10 mg accutane free shipping skin care at 30, through regulation accutane 20 mg sale skin care secrets, inspection and law enforcement. Good practice statement When possible, use: • fxed-dose combinations rather than co-blistered or loose, single-agent formulations; and • for young children and infants, paediatric formulations, with a preference for solid formulations (e. Malaria control requires an integrated approach, including prevention (primarily vector control) and prompt treatment with effective antimalarial agents. Since publication of the frst edition of the Guidelines for the treatment of malaria in 2006 and the second edition in 2010, all countries in which P. This has contributed substantially to reductions in global morbidity and mortality from malaria. The treatment recommendations in this edition of the Guidelines have a frm evidence base for most antimalarial drugs, but, inevitably, there are still information gaps. The Guidelines will therefore remain under regular review, with updates every 2 years or more frequently as new evidence becomes available. The treatment recommendations in the main document are brief; for those who wish to study the evidence base in more detail, a series of annexes is provided, with references to the appropriate sections of the main document. No guidance is given in this edition on the use of antimalarial agents to prevent malaria in people travelling from non-endemic settings to areas of malaria transmission. Other groups that may fnd them useful include health professionals (doctors, nurses and paramedical offcers) and public health and policy specialists working in hospitals, research institutions, medical schools, non-governmental organizations and agencies that are partners in health or malaria control, the pharmaceutical industry and primary health-care services. They also used raw data from the WorldWide Antimalarial Resistance Network, a repository of clinical and laboratory data on pharmacokinetics and dosing simulations in individual patients, including measurements using validated assays of concentrations of antimalarial medicines in plasma or whole blood. The data came either from peer-reviewed publications or were submitted to regulatory authorities for drug registration. Population pharmacokinetics models were constructed, and the concentration profles of antimalarial medicines in plasma or whole blood were simulated (typically 1000 times) for each weight category to inform dose recommendations. The terms used in the quality assessments refer to the confdence that the guideline development group had in the estimate and not to the scientifc quality of the investigations reviewed: Quality of evidence Interpretation The group is very confdent in the estimates of High effect and considers that further research is very unlikely to change this confdence. The group has moderate confdence in the estimate of effect but considers that further Moderate research is likely to have an important impact on their confdence and may change the estimate. The group has low confdence in the estimate of effect and considers that further research is Low very likely to have an important impact on their confdence and is likely to change the estimate. Recommendations were formulated after considering the quality of the evidence, the balance of benefts and harm and the feasibility of the intervention based on the four core principles listed in the executive summary. Although cost is a critical factor in setting national antimalarial treatment policies, cost was not formally considered. The dose recommendations were designed to ensure equivalent exposure of all patient groups to the drug. A revised dose regimen was recommended when there was suffcient evidence that the dose should be changed in order to achieve the target exposure. The Guideline Development Group discussed both the proposed wording of the recommendations and the rating of its strength. Areas of disagreement were resolved through extensive discussions at the meetings, e-mail and teleconferencing. The fnal draft was circulated to the Guideline Development Group and external peer reviewers. The external comments were addressed where possible and incorporated into the revised guidelines. Consensus was reached on all the recommendations, strength of evidence and the wording of the guidelines. Factor considered Rationale The more the expected benefts outweigh the expected risks, the more likely it is that Balance of benefts a strong recommendation will be made. If the recommendation is likely to be Values and preferences widely accepted or highly valued, a strong recommendation is more likely. If an intervention is achievable in the settings Feasibility in which the greatest impact is expected, a strong recommendation is more likely. These recommendations were made when the panel considered there to be such limited evidence available on alternatives to current practice that they could do little but recommend the status quo pending further research. These statements are made to re-emphasize the basic principles of good care, or good management practice with implementation, such as quality assurance of antimalarial medicines. Substantial The majority debate should Be prepared to of people in be conducted help individuals your situation at national in making a would want the Conditional level, with the decision that is recommended involvement consistent with course of action, of various their own values. No external source of funding either from bilateral technical partners or from industry was solicited or used. No case necessitated the exclusion of any of the Guideline Development Group member or an external peer reviewer. The members of the guideline development group and a summary of declaration of interest listed in Annex 1. There will also be dissemination through regional, sub-regional and country meetings. Member States will be supported to adapt and implement these guidelines (further details on national adaptation and implementation provided in Chapter 14). A mechanism will be established for periodic monitoring and evaluation of use of the treatment guidelines in countries. The frst symptoms of malaria are nonspecifc and similar to those of a minor systemic viral illness. They comprise headache, lassitude, fatigue, abdominal discomfort and muscle and joint aches, usually followed by fever, chills, perspiration, anorexia, vomiting and worsening malaise. In young children, malaria may also present with lethargy, poor feeding and cough. At this early stage of disease progression, with no evidence of vital organ dysfunction, a rapid, full recovery is expected, provided prompt, effective antimalarial treatment is given. If ineffective or poor-quality medicines are given or if treatment is delayed, particularly in P. Disease progression to severe malaria may take days but can occur within a few hours. Severe malaria usually manifests with one or more of the following: coma (cerebral malaria), metabolic acidosis, severe anaemia, hypoglycaemia, acute renal failure or acute pulmonary oedema. The pattern of acquired immunity is similar across the sub-Sahel region, where malaria transmission is intense only during the 3- or 4-month rainy season and relatively low at other times. In both these situations, clinical disease is confned mainly to 4 High transmission area: hyperendemic or holoendemic area in which the prevalence rate of P. In these areas, virtually all exposed individuals have been infected by late infancy or early childhood. Malaria infection and disease may occur at a similarly low frequency at any age, as little immunity develops. In contrast, in these settings adolescents and adults are partially immune and seldom suffer clinical disease, although they often continue to have low blood-parasite densities. Immunity is modifed in pregnancy, and it is gradually lost, at least partially, when individuals move out of the endemic areas for long periods (usually many years). In areas of unstable malaria transmission, which prevail in much of Asia and Latin America and the remaining parts of the world where malaria is endemic, the intensity of malaria transmission fuctuates widely by season and year and over relatively small distances. The entomological inoculation rate is usually < 5/year and often < 1/year, although there are usually small foci of higher transmission in areas in which asymptomatic parasitaemia is common.

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