DIFFERENT TYPES OF MALARIA There are 4 different species of human parasite: Plasmodium falciparum (most serious) in sub-Sarahan Africa, Papua New Guinea and Amazon rain forests of South America – death can occur within days Plasmodium vivax in Indian sub-continent P.Ovale mostly in Africa P.Malariae mostly in Africa The mosquito is responsible for transmitting many diseases, such as dengue fever, yellow fever, Japanese B encephalitis, but malaria is the most serious of these tropical diseases. The malaria parasite enters your body when the mosquito bites you, and the parasites first of all go to your liver, where they will stay for many days, and where they multiply over and over again. At this stage you have no idea you have malaria, as you have no symptoms. The parasites then come out of the liver and invade your red blood cells, and multiply again. After two or three days they will burst out of the red cells, and this is often when you get the symptoms of malaria: shivering, sweats and fever, muscle pain and tenderness, headache, and sometimes diarrhoea and a cough. There are four species of malaria, and one of them, called Plasmodium falciparum, is extremely dangerous. It is possible to die from this type within 24 hours of developing the symptoms of malaria. Each year in the United Kingdom, we see up to 2,000 cases of malaria in people who have returned from tropical areas with the disease, and we see on average nine deaths per year. None of these deaths needed to happen. They usually occur because people have not taken the correct precautions. People living in the United Kingdom will not have any protection against the malaria parasite, and indeed, people who used to live in a malarious country but have left there will also not have protection against the disease, as you quickly start to lose your natural immunity within a matter of months after leaving a malarious zone. So when we advise travellers within a consultation, we focus on malaria advice, with an A, B, C, D approach. A is for awareness, understanding the risk and seriousness of the disease. B is for bite prevention, because you significantly reduce your risk of malaria if you minimise the potential to get bitten. C is for the drugs we refer to as chemoprophylaxis. Making sure that the most appropriate drug is selected, and that the course of tablets is always finished - this is absolutely essential. And D is for diagnosis: understanding the symptoms of malaria and knowing to seek medical help immediately. In the medical profession we regard this as a medical emergency. When people come back from their holiday, and they're back into work, and they're feeling fine, they often decide there's no need to carry on with their malaria tablets. It is absolutely essential to complete the course of malaria tablets, to help prevent malaria breaking through. Remember, malaria presents like a 'flu-like illness. Don't be confused by this. If you get the symptoms, it's essential that you go to your GP's surgery and say that you have been abroad. You will need a test for malaria. This will enable a speedy diagnosis and could potentially save your life. Look out for the symptoms of malaria, particularly in the first three months, but up to a year after your trip, and make sure that you visit the doctor's surgery and let them know that you've been to a malarious zone. Taken from www.malariahotspots.co.uk Jane Chiodini’s audio transcript. Taken from internet March 2008. Anti-malarial medication Your nurse/doctor will advise which tablets you should take. Medication How long before Whilst in the How long after entering malarious malarious area departing malarious area? area? Chloroquine Commence 1 week Every week whilst 4 weeks after (Adults) 300mg before entering in malarious area departing malarious to be taken weekly malarious area Proguanil Commence 1wk Every day whilst in 4 weeks after (Adults) 200mg before entering malarious area to be taken daily malarious area Mefloquine Commence 2-3 Every week whilst 4 weeks after (Adults) 250mg weeks before in malarious area departing malarious area departing malarious area to be taken weekly entering malarious area area Malarone Commence 1-2 days Every day whilst in 7 days after departing (Adults) x1 tablet before entering malarious area to be taken daily malarious area Doxycycline Commence 1-2 days Every day whilst in 4 weeks after (Adults) 100mg before entering malarious area to be taken daily malarious area malarious area departing malarious area Please visit: www.malariahotspots.co.uk and make sure you know how to prevent yourself from getting malaria. Questions Atovaquone/Proguanil Malarone/Malarone Paediatric Doxycyline Vibramycin Mefloquine Lariam Chloroquine/Proguanil Paludrine/Avloclor How effective is it? When do I take them? 95-100% effective What are the key things I should consider? Speak to your health care professional before taking the antimalarials Who should not take these antimalarials? What are the possible side effects? >90% effective 1-2 days before you go Every day in the malarious area 7 days when you leave that area 1-2 days before you go Every day in the malarious area 28 days when you leave that area 1-3 weeks before you go Every week in the malarious area 28 days when you leave that area Take with food or a milky drink at the same time each day Repeat dose if you vomit within 1 hour Malarone Paediatric is the only antimalarial specifically formulated for children Take with full glass of water after a meal and stay upright for at least half an hour May make you more susceptible to sunburn, use high factor sun cream, if a skin rash occurs consult your doctor or practice nurse May reduce efficacy of combined oral contraceptive pill/patch, use extra precautions for 3 weeks May cause vaginal thrush Alcohol may decrease the effectiveness If you have systemic lupus erythematosus (SLE), porphyria or achlorhydria If you are taking warfarin, penicillin drugs, barbiturates, carbamazepine or phenytoin, methoxyflurance, certain retinoids, digoxin, lithium or diuretics Is not suitable for children under 12 years If you are pregnant or breast feeding If you are allergic to tetracycline antibiotics If you have fructose intolerance, glucosegalactose malabsorption, or sucraseisomaltase deficiency The tablets should be swallowed whole, preferably after a meal with plenty of liquid It is advisable to avoid pregnancy for 3 months after completing the course If in a malarious area for more than 4 weeks If you are taking metoclopramide, tetracycline, rifampicin, rifabutin or indinavir If you weigh less than 11kg If you are pregnant or breast feeding unless your doctor tells you otherwise Common: (similar to placebo) headache, abdominal pain, diarrhoea Uncommon: fever, nausea, vomiting, anorexia, cough, anaemia, insomnia, dizziness, breathlessness, rash or hair loss What is the approximate cost ? Info taken from BNF Sept. 2009. NB: Chemists may charge a dispensing fee and VAT. Always ensure you get British Standard drugs to ensure efficacy. >90% effective 12 Tablet pack = £25.21 Headache, abdominal pain, nausea, vomiting, anorexia, anaemia, rash, flaking of the skin, exaggerated sunburn, mouth ulcers, indigestion, loss of appetite, thrush or soreness and itching of the genital area, blurred vision, worsening of SLE, anaphylactic shock, tinnitus, discolouration of teeth 100mg 8 Tablet pack = £1.14 Effective in chloroquine sensitive areas of the world only 2-7 days before you go Chloroquine – every week in the malarious area Proguanil – every day in the malarious area 28 days when you leave that area The exact areas in which you are travelling to must still be sensitive to chloroquine If appropriate, ensure you have the rabies vaccine before you start taking chloroquine If you suffer from heart trouble, high blood pressure, blood clotting disorders or diabetes If you have had an oral vaccine in the last 3 days If you weigh less than 5kg If you are pregnant or breast feeding, unless your doctor tells you otherwise; not during the first 3 months of pregnancy If you have had any mental health problems or depression If you have epilepsy Patients taking Zyban for smoking cessation Common: headache, abdominal pain, diarrhoea, nausea, vomiting, dizziness, loss of balance, sleep disorders, abnormal dreams Uncommon: fever, anorexia, depression, mood changes, anxiety, confusion, hallucinations, panic attacks, restlessness, forgetfulness, paranoia, convulsions, visual/hearing impairment, chest pain, palpitations, rash, hair loss, rare reports of suicidal tendencies 8 tablet pack = £14.53 The Sheffield University Health Centre take no responsibility for the accuracy of this information. Should not be used during pregnancy unless your doctor tells you otherwise If you are taking hydroxchloroquine Patients taking Zyban for smoking cessation Headache, nausea, vomiting, itching, hair discolouration or hair loss, convulsions, mood changes, or other effects on behaviour, changes in your blood, mouth ulcers, rash and transient eye problems. If you take chloroquine for a long time speak to your health care professional about possible side effects Chloroquine: 20 tablet pack = £1.22 Chloroquine plus Proguanil Travel Pack: 14 chloroquine tablets and 98 proguanil tablets + £8.79 Patient Information Leaflet on Malaria Prophylaxis. January 2009. IT IS IMPORTANT THAT YOU READ THIS CAREFULLY. Always ensure you ask your Doctor or Nurse for the most up to date advice on taking Anti-Malarial Tablets. If you have porphyria, epilepsy or psoriasis If you take chloroquine for a long time there are other precautions If you are taking warfarin