Prevention of Malaria

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QUESTION

What is the prevention of malaria?

ANSWER

Malaria prevention consists of a combination of mosquito avoidance measures and chemoprophylaxis. Although very efficacious, none of the recommended interventions are 100% effective.

Mosquito Avoidance Measures

  • Because of the nocturnal feeding habits of Anopheles mosquitoes, malaria transmission occurs primarily between dusk and dawn.
  • Contact with mosquitoes can be reduced by remaining in well-screened areas, using mosquito bed nets (preferably insecticide-treated nets), using a pyrethroid-containing flying-insect spray in living and sleeping areas during evening and nighttime hours, and wearing clothes that cover most of the body.
  • All travelers should use an effective mosquito repellent.
  • The most effective repellent against a wide range of vectors is DEET (N,N-diethylmetatoluamide), an ingredient in many commercially available insect repellents. The actual concentration of DEET varies widely among repellents. DEET formulations as high as 50% are recommended for both adults and children older than 2 months of age (see the Protection Against Mosquitoes, Ticks, and Other Insects and Arthropods section later in this chapter). DEET should be applied to the exposed parts of the skin when mosquitoes are likely to be present.
  • In addition to using a topical insect repellent, a permethrin-containing product may be applied to bed nets and clothing for additional protection against mosquitoes.

Read the full article about Malaria Prevention.

Malaria while in Addis Ababa, Ethiopia?

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QUESTION

My husband and I recently adopted our second child from Ethiopia about 3 months ago. We did NOT take Malaria medication because we only stayed in Addis Ababa and did not travel outside the city—or very far from out hotel for that matter. I’ve recently started very odd symptoms—aches, chills but no fever, general feeling of malaise, runs, dry cough, hot flashes followed by sweats, and fatigue so severe I sometimes don’t have the energy to talk. The weird part is that the symptoms come and go. I feel fine for a few days, and then boom! Down for the count again, then fine the next day. I’m going to see my Dr. tomorrow, but could I have Malaria???

ANSWER

While the cyclical symptoms, occurring every few days, are similar to the cycles experienced by malaria sufferers, the lack of a fever is a good indication that you don’t have malaria. Moreover, as you clearly researched before your trip, Addis Ababa is not a transmission zone for malaria, so it is unlikely that you would have been infected during your trip. By now you will have probably seen your doctor, and I suspect s/he will have ruled out malaria. If you really want peace of mind, you can also ask for a blood test, just to check. I hope your condition is diagnosed and treated soon, and you recover quickly!

How Long Does it Take to Feel Ill from Malaria?

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QUESTION

How soon does a person usually to feel ill after malaria infection?

ANSWER

After being bitten by an infected mosquito, there is an “incubation period” before the person begins to suffer from symptoms of malaria. This time corresponds to the period the malaria parasite spends in the liver; it is once it enters the blood and begins to destroy red blood cells that initiate the onset of symptoms. The length of the incubation depends on a number of factors, including the type of malaria and whether the person has been taking anti-malarial preventative medication (prophylaxis), but the usual length of time is between 1-4 weeks.

How Long for Malaria Medication to Start Working?

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QUESTION

After I treat my body with the malaria pill how long will it be to start working in my body?

ANSWER

The malaria medication will start working almost immediately after you take it. The way in which malaria pills work differ depending on the type of drug you are taking, but most act on the parasites which infect red blood cells in your body. As soon as the parasite’s life cycle in the red blood cells is disrupted, you will begin to notice reduced symptoms and feel better, though it is important to take the full course of pills given to you by the pharmacist or doctor, as this ensures that all the malaria parasites are destroyed.

If you have recently taken medication against malaria, perhaps you would be willing to complete a short survey on our website, designed to get information about the experiences people have with malaria medication and the side effects they might have experienced? We would be very grateful for a few moments of your time – the link to the survey is here: Malaria Medication Side Effects Survey.

Can I Catch Malaria from Someone?

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QUESTION

My fiancee contracted malaria a few years ago. It was diagnosed as recurring. Could I contract malaria from the infected person, I have had similar symptoms which last a day or two, recurring with regular two week intervals, of which the most concerning are malaise, fever, stiff neck, headaches and severe pains over abdomen spreading into my mid back. What should I do?

ANSWER

Malaria cannot be directly transmitted between two people—it is almost always transmitted by the bite of an infected mosquito, and cannot survive at low temperatures (under about 17 degrees C). In some very rare cases, malaria can be transmitted through organ transplant, blood transfusion and pregnancy, since it infects red blood cells. Given these restrictions, it is close to impossible that you contracted malaria from your fiancee, and you should talk to your doctor about alternative explanations.

Also, if your girlfriend has recurring malaria, she should talk to her doctor about taking primaquine. While not suitable for everyone (namely people with G6DP deficiency should not take it), it can kill the dormant stages of the malaria parasite and prevent recurrence.

Treatment of Chronic Vivax Malaria

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QUESTION

What is the treatment of chronic Vivax malaria?

ANSWER

Blood stage infection with Plasmodium vivax can usually be treated successfully with chloroquine, though resistance is spreading in some areas (notably the Pacific Islands, Papua New Guinea, parts of south-east Asia and especially Indonesia, and Peru). P. vivax is also sensitive to artemisinin-based combination therapies (ACTs) and as no resistance to artemisinin has been reported, these are widely recommended (though combinations which include sulfadoxine-pyrimethamine should be avoided as many strains of P. vivax appear to be resistant to pyrimethamine).

Liver stage (i.e. relapsing) P. vivax can only be treated with one drug: primaquine. Instances of liver stage treatment failure are relatively commonplace, and may be strain or dosage dependent. Primaquine is not recommended for people with G6DP deficiency, so potential patients, and particularly those from locations or ethnic groups known to have high levels of G6DP deficiency, should be tested prior to treatment.

What does the goverment do to help malaria?

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QUESTION

Does the goverment help malaria?

ANSWER

Many governments around the world assist in controlling malaria. Some countries, like Australia and the United States, used to have malaria transmission occur within their own borders, but through dedicated control programs, have managed to eradicate the disease locally. In these cases, the government coordinated huge programs of draining standing water, spraying insecticides and ensuring that health clinics were equipped to diagnose and quickly treat any human cases.

Nowadays, the governments of the US and Australia, along with many other countries which do not have malaria, still assist in the fight against malaria by funding malaria control programs in other countries, either directly (for example, the US funds international health projects through the US Agency for International Development) or indirectly, through international organisations like the World Health Organisation and the Global Fund for HIV, TB and Malaria. They also provide training in technical expertise to scientists, doctors and clinicians from malaria-endemic countries.

The governments of countries which have malaria are also deeply engaged in fighting the disease, mostly through their respective Ministries of Health, which often have specific malaria departments. In India, for example, malaria control is carried out by the National Vector Borne Disease Control Programme (NVBDCP), which is part of the Directorate General of Health Services. The NVBDCP carries out a multi-pronged strategy to combat malaria, including early case detection and treatment, vector control (with spraying, biological control and personal protection), community participation, etc. In Uganda, the Malaria Control Programme also carries out the above activities, and also provides intermittent preventative treatment against malaria for young children and pregnant women and has in the past engaged in large-scale distribution of long-lasting insecticide treated bednets. Both countries also explicitly include monitoring and evaluation as part of their control strategies, to make sure that any interventions or control efforts they make are having a positive impact on reducing malaria morbidity and mortality.

What is Malaria?

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QUESTION

What is malaria?

ANSWER

Malaria is a serious and sometimes fatal disease caused by a parasite that commonly infects a certain type of mosquito which feeds on humans. People who get malaria are typically very sick with high fevers, shaking chills, and flu-like illness. Four kinds of malaria parasites can infect humans: Plasmodium falciparum, P. vivax, P. ovale, and P. malariae. Infection with P. falciparum, if not promptly treated, may lead to death. Although malaria can be a deadly disease, illness and death from malaria can usually be prevented.

Headaches, Sweats, Nausea, Fatigue

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QUESTION

Since visiting Gambia I have been off food, suffering from headaches, sweats, nausea, tiredness and diarrhea after every meal, when I can eat that is. Do you think I should go to the doctor for a test for malaria?

ANSWER

Yes—whenever you have symptoms that include fever and sweats after visiting an area of high malaria transmission, it is always worthwhile getting a malaria test. With a positive diagnosis, the doctor can find out what type of malaria you have and then give you the most appropriate treatment. If the test is negative, the doctor is then able to look for other possible causes of your symptoms, such as an intestinal parasitic infection or some other illness.

How Many Malaria Deaths in Africa?

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QUESTION

What is the estimated number of deaths in Africa caused by malaria each year?

ANSWER

The exact numbers of deaths caused by malaria every year is very difficult to measure accurately, due to difficulties in diagnosis and also failure to report cases. However, the Roll Back Malaria partnership, coordinated by a host of international organisations including the World Health Organisation, estimates that last year approximately 801,000 people died of malaria in Africa, which represents over 90% of the total annual worldwide deaths. Of those, the vast majority of victims were children under the age of five.