Malaria and your safari of a lifetime
(The name malaria comes from the Italian mala aria, meaning bad air.)
While the risk of malaria is low in both Kruger National Park and Mapungubwe National Park, the risk is there, so if you go to either park you should know what to do.
Seasons with more rainfall and higher temperatures will have more malaria transmission than colder, drier seasons. However even during cooler months or periods of less rainfall you can be at risk!
The threat of malaria should not affect your decision to enjoy and experience the Kruger Park, but is just something one should be aware of and take precautions to be exposed to.
A 24-hour malaria hotline is available on +27 (0)82 234 1800 to give detailed explanation on risk and advice on precautionary measures.
What is malaria?
Malaria is always a serious disease and may be a deadly illness! In fact over a million people worldwide die from malaria each year.
Malaria is caused by a parasitic germ (the Plasmodium family) that lives in Anopheles mosquitoes, and passed to people through bites. While all species of malaria parasites can make a person feel very ill, Plasmodium falciparum causes severe, potentially fatal malaria.
Most types of mosquito do not carry the malaria plasmodium and if one is bitten it does not mean one will contract malaria. Only mosquitoes of the anopheles genus carry the plasmodium, and then only if they have previously fed on an infected host. As the presence of people with the plasmodium in their bloodstream in the park is greatly reduced compared to past times, risk is once more reduced. One reason for these reductions is that the accommodation units in the parks are sprayed periodically throughout the year. Now that international campaigns see treatment taking place in adjacent countries such as Mozambique and Swaziland, malaria occurrence has been further reduced.
What you should always do
This is just a little guide, most people can just take simple precautions, but not every body is the same, so visit your doctor and ask his/her advice! Especially pregnant woman should do so, your baby
is at risk!
Also keep in mind that children under 5 kilos can not take antimalarials, so the only protection they have is mosquito repellant soaps and spray... And if they are somewhat heavier the side effects listed at the end of this post are not really pleasant...
What can you do against malaria?
Persons who travel to areas where P. falciparum malaria is present should be extra careful to take their antimalarial drug and to prevent mosquito bites.
Malaria is transmitted by the bite of an infected mosquito, these mosquitoes usually bite between dusk and dawn, in the night. To avoid being bitten, remain indoors in a screened or air-conditioned area during the peak biting period. If out-of-doors, wear long-sleeved shirts, long pants, and hats. Apply insect repellent (bug spray) to exposed skin.
For the prevention of malaria an insect repellent with DEET (N, N-diethyl-m-toluamide) is the repellent of choice. Many DEET products give long-lasting protection against the mosquitoes that transmit malaria (the anopheline mosquitoes).
A new repellent is now available that contains 7% picaridin (KBR 3023). Picaridin may be used if a DEET-containing repellent is not acceptable to the user. However, there is much less information available on how effective picaridin is at protecting against all of the types of mosquitoes that transmit malaria. Also, since the percent of picaridin is low, this repellent may only protect against bites for 1-4 hours.
Taking precautions is effective, but not 100%!
Know the Symptoms
Despite these protective measures, you may become infected with malaria. Malaria symptoms can include:
- fever
- chills
- headache
- flu-like symptoms
- muscle aches
- fatigue
- low blood cell counts (anemia)
- yellowing of the skin and whites of the eye (jaundice)
If not promptly treated, infection with Plasmodium falciparum, the most harmful malaria parasite, may cause coma, kidney failure, and death.
You may have heard that taking antimalarial drugs masks the actual malaria. This is not strictly true, but it is harder to diagnose as for instance the parasite count is lower. So if you have malaria-like symptoms have you medic look twice. The malaria itself will not be as severe, and recovery is quicker.
Malaria is always a serious disease and may be a deadly illness. Travelers who become ill with a fever or flu-like illness either while traveling in a malaria-risk area or after returning home (for up to 1 year) should seek immediate medical attention and should tell the physician their travel history.
Taking antimalarials
Take your antimalarial drug exactly on schedule. Missing or delaying doses may increase your risk of getting malaria.
For the best protection against malaria, it is important to continue taking your drug as recommended after leaving the malaria-risk area (4 weeks for mefloquine, doxycycline, or chloroquine, 7 days for atovaquone/proguanil or primaquine). Otherwise, you can develop malaria.
Halofantrine (also called Halfan) is/was widely used to treat malaria. It's recommended that you do not take Halfan because of serious heart-related side effects, including deaths.
A side effect from many antimalarials is that it can cancel the pill, something to keep in mind too, or you might have a very dear memento of your visit to the park!
Travelers to areas with malaria risk should take one of the following antimalarial drugs (listed alphabetically):
- atovaquone/proguanil
- doxycycline
- mefloquine
- primaquine (in special circumstances).
If you do still have questions you can probably find the answers in
this topic, and if not, just ask there. Remember though that in order to get malaria you have to be bitten by a specific mosquito, and that mosquito has to have bitten someone with malaria. So happily go on your safari, but do it safely.
Deet, Peacefull sleep and such can be bought at most campshops.
This medical info from the American CDC, or Centers for Disease Control and Prevention may be interesting:
Atovaquone/proguanil (brand name: Malarone)
Atovaquone/proguanil is a combination of two drugs, atovaquone plus proguanil, in one tablet. It is available as the brand name, Malarone.
The adult dosage is 1 adult tablet (250 atovaquone/100 mg proguanil) once a day.
Take the first dose of atovaquone/proguanil 1 to 2 days before travel to the malaria-risk area.
Take your dose once a day during travel in the malaria-risk area.
Take your dose once a day for 7 days after leaving the malaria-risk area.
Take your dose at the same time each day and take the pill with food or milk.
Side Effects and Warnings
The most common side effects reported by travelers taking atovaquone/proguanil are stomach pain, nausea, vomiting, and headache. Most people taking this drug do not have side effects serious enough to stop taking it, if you cannot tolerate atovaquone/proguanil, see your health care provider for a different antimalarial drug.
Doxycycline (many brand names and generic drugs are available)
Doxycycline is related to the antibiotic tetracycline.
The adult dosage is 100mg once a day.
Take the first dose 1 or 2 days before arrival in the malaria-risk area.
Take your dose once a day, at the same time each day, while in the risk area.
Take your dose once a day for 4 weeks after leaving the risk area.
Side Effects and Warnings
One of the most common side effects reported by travelers taking doxycycline include sun sensitivity (sunburning faster than normal). To prevent sunburn, avoid midday sun, wear a high SPF sunblock, long-sleeved shirts, long pants, and a hat.
Doxycycline may cause nausea and stomach pain. Take the drug on a full stomach with a full glass of liquid. Do not lie down for 1 hour after taking the drug to prevent reflux of the drug (backing up into the esophagus).
Women may develop a vaginal yeast infection on doxycycline. Treat vaginal discharge or itching with either an over-the-counter yeast medication or ask your health care provider for a prescription pill or cream.
Most people taking this drug do not have side effects serious enough to stop taking it; if you cannot tolerate doxycycline, see your health care provider. Other antimalarial drugs are available.
Mefloquine (brand name Lariam and generic)
The adult dosage is 250 mg (one tablet) once a week.
Take the first dose 1 week before arrival in the malaria-risk area.
Take your dose once a week, on the same day of the week, while in the risk area.
Take your dose once a week for 4 weeks after leaving the risk area.
Take the drug on a full stomach with a full glass of liquid.
Side Effects and Warnings
The most common side effects reported by travelers taking mefloquine include headache, nausea, dizziness, difficulty sleeping, anxiety, vivid dreams, and visual disturbances. Mefloquine has rarely been reported to cause serious side effects, such as seizures, depression, and psychosis. These serious side effects are more frequent with the higher doses used to treat malaria; fewer occurred at the weekly doses used to prevent malaria.
Mefloquine is eliminated slowly by the body and thus may stay in the body for a while even after the drug is discontinued. Therefore, side effects caused by mefloquine may persist weeks to months after the drug has been stopped.
Most travelers taking mefloquine do not have side effects serious enough to stop taking the drug.
The following travelers should not take mefloquine and should ask their health care provider for a different antimalarial drug:
persons with active depression or a recent history of depression
persons with a history of psychosis, generalized anxiety disorder, schizophrenia, or other major psychiatric disorder
persons with a history of seizures (does not include the type of seizure caused by high fever in childhood)
persons allergic to mefloquine
Mefloquine is not recommended for persons with cardiac conduction abnormalities (for example, an irregular heartbeat).
Primaquine
In special situations when other antimalarial drugs cannot be taken and in consultation with malaria experts, primaquine may be used to prevent malaria while the traveler is in the malaria-risk area (primary prophylaxis).
Note: Travelers must be tested for G6PD deficiency (glucose-6-phosphate dehydrogenase) and have a documented G6PD level in the normal range before primaquine use. Primaquine can cause an hemolysis (bursting of the red blood cells) in G6PD deficient persons, which can be fatal.
The adult dosage is 2 tablets (30 mg base primaquine) once a day.
Take the first dose 1-2 days before travel to the malaria-risk area.
Take the dose once a day, at the same time each day, while in the risk area.
Take the primaquine once a day for 7 days after leaving the risk area.
Side Effects and Warnings
The most common side effects reported by travelers taking primaquine include stomach cramps, nausea, and vomiting. The following travelers should not take primaquine and should ask their health care provider for a different drug:
- persons with G6PD deficiency
- persons who have not had a blood test for G6PD deficiency
- pregnant women (the fetus may be G6PD deficient, even if the mother's blood test is in the normal range) women breast-feeding infants unless the infant has a documented normal G6PD level
- persons allergic to primaquine
Do not share primaquine with others; they may be G6PD deficient and suffer bursting of their red blood cells, which can be fatal.
Chloroquine phosphate (brand name Aralen and generics)
The adult dose is 500 mg chloroquine phosphate once a week.
Take the first dose of chloroquine 1 week before arrival in the malaria-risk area.
Take your dose once a week, on the same day of the week, while in the risk area.
Take your dose once a week for 4 weeks after leaving the risk area.
Chloroquine should be taken on a full stomach to lessen the risk of nausea and stomach upset.
Side Effects and Warnings
The most common side effects reported by travelers taking chloroquine include nausea and vomiting, headache, dizziness, blurred vision, and itching. Chloroquine may worsen the symptoms of psoriasis. Most travelers taking chloroquine do not have side effects serious enough to stop taking the drug. Other antimalarial drugs are available; see your health care provider.
Note: In malaria-risk areas where chloroquine is the recommended drug but chloroquine cannot be taken, atovaquone/proguanil, doxycycline, mefloquine, or primaquine can be used as your antimalarial drug.
Hydroxychloroquine sulfate (brand name: Plaquenil)
Hydroxychloroquine sulfate is an alternative to chloroquine phosphate, although less evidence exists on its effectiveness as an antimalarial drug.
The adult dosage is 400 mg once a week.
Take the first dose 1 week before arrival in the malaria-risk area.
Take your dose once a week, on the same day of the week, while in the risk area.
Take the dose once a week for 4 weeks after leaving the risk area.
Take hydroxychloroquine sulfate on a full stomach to lessen nausea and stomach upset.
Side Effects and Warnings
Nausea and vomiting, headache, dizziness, blurred vision, difficulty sleeping, and itching have been reported with hydroxychloroquine sulfate use. Minor side effects usually do not require stopping the drug. Hydroxychloroquine sulfate may worsen the symptoms of psoriasis. Other antimalarial drugs are available; see your health care provider.
Note: In malaria-risk areas where hydroxychloroquine sulfate is the recommended drug but hydroxychloroquine sulfate cannot be taken, atovaquone/proguanil, doxycycline, mefloquine, or primaquine can be used as your antimalarial drug.