by Malaria Q&A
QUESTION
what are effects of malaria?
ANSWER
If a person becomes infected with malaria, they may start to experience the symptoms of the disease. These include high fever, aches, chills, nausea, headache, and sometimes more severe manifestations, such as severe anemia, impaired consciousness and even coma or death. These latter severe effects are more commonly associated with Plasmodium falciparum infection, the most deadly form of malaria.
by Malaria Q&A
QUESTION
Can malaria cause vomiting when a smell of petrol is inhaled?
ANSWER
One of the symptoms of malaria is nausea, and vomiting can also occur, but it would not necessarily be linked to certain smells. The most characteristic symptom malaria is a high fever, often also accompanied by periods of chills. See more malaria symptoms here.
by Malaria Q&A
QUESTION
What is the effect of malaria on host?
ANSWER
In the human host, malaria can often make a person very sick, though the exact symptoms and severity of the disease depends on the type of malaria (five different kinds of malaria infect humans). Many people will have a high fever, chills, nausea and body aches. In a symptom very typical of malaria, a patient will experience cyclical fever, with periods of no fever in between, lasting between one and two days. In infections with Plasmodium falciparum, the most dangerous kind of malaria, patients may experience impaired consciousness, a sign of “cerebral malaria”, which can lead to loss of consciousness, coma and even death.
In terms of the mosquito host (more commonly called the vector), the insect does not experience “illness” in the same way as the human host, and the parasite does not seem to have a particularly negative effect on the mosquito. However, some research has shown that infection with malaria may cause a mosquito to seek out blood meals more frequently, which scientists argue is an adaptation of the malaria parasite to ensure that its life cycle is continued.
by Malaria Q&A
QUESTION
I went to Luanda, Angola and Port Hartcourt, Nigeria, Onne, Nigeria and Warri, Nigeria a few times. I suffer with voice problems, muscle control on my right side and some joint pains that have not been explained by my doctors.
I have been to doctors in Houston, Tx., New Orleans, La., New Iberia, La. and Franklin, La. and they all say the same thing. They don’t know what’s wrong with me. It maybe malaria that has laid dormant for nearly three years. I need to find out who can diagnose this for me and get me some help. My symptoms go back to 2009 with the balance being the first problem I noticed. The loss of my voice came later. I took off work for 5 months. Help me find someone close that might be able to help.
ANSWER
Although joint pains are associated sometimes with malaria infection, the most common symptoms are high fevers and chills—it would be unusual to suffer problems of with balance, the voice or muscle spasms.
A blood test is the only way to test for malaria for sure—this may be possible at a local travel clinic or any hospital which has a tropical medicine specialist.
I am not sure of any such exact clinics/hospitals in your area. However, I believe the CDC website has a list of local resources for tropical medicine. Otherwise, the CDC itself is located in Atlanta, GA, and they are certainly able to perform malaria testing, as well as give you advice as to whether you might be suffering from some other disease acquired internationally.
by Malaria Q&A
QUESTION
Is there a vaccine to prevent malaria?
What is the difference between yellow fever and malaria?
ANSWER
In answer to your first question, no, there is not currently a vaccine available to prevent malaria. The best current candidate, the RTS,S vaccine which was developed by GlaxoSmithKline, is currently undergoing Phase III clinical trials in Africa. Although preliminary results showed up to a 50% rate of protection against malaria in some age groups, the trials will not conclude until 2014 and so full results will not be known until after that date.
As for your second question, while yellow fever and malaria are both transmitted by mosquitoes, they share few other similarities. Yellow fever is caused by a virus, for example, whereas malaria is caused by a single-celled parasite of the genus Plasmodium. The group of organisms that Plasmodium belongs to is often called “Protista” (the exact grouping and classification constantly changes!), and they more generally belong, based on cell type, to the Eukaryotes, an enormous group of organisms which also includes all mammals and even humans! Viruses, on the other hand, are tiny pieces of genetic material wrapped in a protein coating, and can hardly be described as alive in a conventional sense.
While both yellow fever and malaria are transmitted by mosquitoes, yellow fever is transmitted by the genus Aedes, whereas malaria is exclusively transmitted by the genus Anopheles (at least in humans, and all other mammals for that matter).While spraying inside households may reduce the prevalence of both types of mosquitoes, Aedes mosquitoes tend to feed during the day, so sleeping under an insecticide-treated bednet is less protective against yellow fever than it is against malaria. Also, a vaccine is available for yellow fever (and has been available for over 50 years), whereas as I describe above, no such vaccine yet exists for malaria.
Finally, while superficially the symptoms of yellow fever and malaria may seem similar (fever, nausea, aches), other manifestations of the disease can be very different. Yellow fever is technically considered a hemorrhagic disease, since it can cause increased tendency to bleed in patients. Also, in some patients, the initial symptoms are followed by an acute liver phase, causing jaundice which can turn the patient yellow (and hence the name). Malaria can also affect the liver, and cause ild jaundice, but usually not to the extent of yellow fever. Once a patient has been diagnosed with yellow fever, there is no specific treatment, and the patient is merely treated based on symptoms, to ease their discomfort. Vaccination is the mainstay of control of this disease, and has been very successful in many places; the total number of worldwide cases is estimated by the World Health Organization to be around 300,000, with 20,000 deaths, mainly in Africa.
The burden of malaria is also mainly felt in Africa, though the number of cases and deaths is vastly higher – globally, there are approximately 200 million cases of malaria in 2010, with almost 700,000 deaths. Along with the general symptoms of fever and nausea, the most dangerous manifestation of malaria is when it causes cerebral symptoms; this is usually only caused by Plasmodium falciparum malaria, and can lead to impaired consciousness, coma and even death. Also in contrast to yellow fever, the mainstay of control is a combination of prevention (mostly with vector control, i.e. using bednets, indoor residual spraying and destruction of breeding habitats and larvae) and treatment (using a variety of medications).
by Malaria Q&A
QUESTION
I would like to know if swelling of lymph nodes in neck is any way connect to malaria?
ANSWER
Swollen lymph nodes are often a sign that the body is trying to fight off an infection, and so swollen lymph nodes are certainly sometimes observed in malaria patients. However, most malaria infections would also be associated with other symptoms, such as fever, chills, nausea and aches.
In some cases (but not all), malaria patients experience cyclical fever, whereby they have a high fever one day and no fever the next, but the fever returns on the third day, and the cycle continues. One type of malaria exhibits a cycle of fever one day, then no fever for two days, then fever returns on the fourth day. However, many patients do not experience these cycles, which means their symptoms are very similar to those for many other illnesses, which is why if you are in or have been visiting an area where malaria is transmitted and you have some of the above symptoms, it is very important to visit a doctor or clinic to get diagnosed for malaria. This can be done with a simple blood test, and the results are usually available very quickly. Then, if you are diagnosed as positive for malaria, the doctor can recommend appropriate treatment and instruct you in the proper way of taking it.
by Malaria Q&A
QUESTION
I had malaria twice when I was 4 and 8 years old. I am 50 years old now but I have severe chills at least once or twice a month, muscle aches, fatigue severe head aches for the past 10-15 years with no apparent cause and my I take head ache medication for migraine (maxalt and excedrim) and my chills and fatigue is getting more frequent. I had no other history of any diseases. Is this symptoms a possible recurrent malaria.
ANSWER
Thanks for your question. One of the most common symptoms of malaria is high fever, which comes in cycles with chills in between. Without fever, it is unlikely that you are suffering from malaria.
However, there are some forms of malaria which can cause relapses. Specifically, Plasmodium vivax and P. ovale can form dormant liver stages which can then re-enter the blood causing a relapse of malaria infection and a recurrence of symptoms. To diagnose malaria in your case, next time you have an episode of chills, go to your doctor and ask for a blood test to check for malaria. S/he will either look at your blood under the microscope or perform a rapid diagnostic test, which tests for malaria-specific proteins, called antigens, in your blood.
In either case, it will tell you whether you have malaria, and which kind. If you have one of the relapsing kinds (P. vivax or P. ovale) then you may be able to take a course of a drug called primaquine which kills the dormant liver forms of the malaria parasite and thus prevents future relapses. However, people with G6DP deficiency should not take primaquine, so you should be tested for this deficiency prior to taking the drug.
by Malaria Q&A
QUESTION
I am someone who has traveled to malaria-infected areas in the past and will do so again in the future. I also happen to have a form of musculr dystrophy (myotonic dystrophy type II) that, among other things, causes me to experience frequent episodes of muscular pain. Thus, the mere presence of muscle pain, in my particular case, can tell little about whether I might have malaria.
Though I do understand there are several other symptoms to look for, I also would still like to have a better understanding of what malarial muscle aches tend to feel like in the hope that this information could perhaps help me distinguish this particular form of muscle pain from the other muscle pains I already experience. For example, I have also occasionally experienced pulled muscles, or muscles that simply were overused during a recent, too prolonged session of resistance training. Thus I am familiar with how these feel and how they differ from the more usual pains caused by my muscular dystrophy. This helps me recognize what is likely causing a particular muscle pain on a particular occasion.
Can you describe malarial “muscle aches” in more detail? For example, which muscles are affected? (The muscular dystrophy tends to cause pain more often in certain muscles while others are more rarely, or not at all, affected … so this information alone could be helpful). Does the ache tend to stay in one set of muscles, or does it move around, hurting one set of muscles on Monday morning and another on Monday night, etc.? Is it a persistent, steady pain (hurting as much on Wednesday as it did on Tuesday) or does it fluctuate? Is it a sharp pain? Dull? Throbbing? What? Does moving or using the aching muscle make it hurt more? Does it come with joint pain, or not? What?
I do, of course, intend to educate myself further about malaria and am already aware of other symptoms that are more helpful for me to be aware of. (Headaches is NOT among these since I have so many of those also, but some of the other symptoms I’ve read are far more unusual for me and thus more helpful in signaling to me the possibility that I’m actually sick and not just having a “bad pain day”) But knowing more about typical malarial muscle pain would help give me an additional data point to consider.
Your assistance will be much appreciated.
ANSWER
I have checked in with one of our medical advisors here at MALARIA.com and this is what he has replied:
Unfortunately, there is no useful characterization of muscle aches associated with malaria. Malaria is not a subtle disease that needs to be detected by characterizing the location or quality of muscle pains. The main symptoms of malaria are high fever and shivering/shaking chills. The presence of these symptoms should prompt an evaluation for malaria. That being said, it should not be an issue if the person takes malaria chemoprophylaxis and uses appropriate mosquito avoidance measures.
Hope that helps!
by Malaria Q&A
QUESTION
What are the symptoms and causes of malaria?
ANSWER
Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have been infected through a previous blood meal taken on an infected person. When a mosquito bites an infected person, a small amount of blood is taken in which contains microscopic malaria parasites. About 1 week later, when the mosquito takes its next blood meal, these parasites mix with the mosquito’s saliva and are injected into the person being bitten.
Because the malaria parasite is found in red blood cells of an infected person, malaria can also be transmitted through blood transfusion, organ transplant, or the shared use of needles or syringes contaminated with blood. Malaria may also be transmitted from a mother to her unborn infant before or during delivery (“congenital” malaria).
There are five kinds of malaria known to infect humans: Plasmodium falciparum, P. vivax, P. ovale, P. malariae and P. knowlesi. The symptoms of malaria differ depending on the type of malaria; P. falciparum is the most deadly and severe form of the disease. General symptoms of malaria include include fever and flu-like illness, including shaking chills, headache, muscle aches, and tiredness. Nausea, vomiting, and diarrhea may also occur. Malaria may cause anemia and jaundice (yellow coloring of the skin and eyes) because of the loss of red blood cells.
Symptoms usually appear between 10 and 15 days after the mosquito bite. If not treated, malaria can quickly become life-threatening by disrupting the blood supply to vital organs.
by Malaria Q&A
QUESTION
Could a person be infected by malaria without symptoms of headache and chills?
ANSWER
Malaria symptoms vary considerably, depending on the type of malaria, the severity of the infection and the patient’s natural immunity. It is certainly possible for a patient to have malaria without experiencing headache and chills; some people infected with certain forms of malaria, such as Plasmodium malariae, may not even experience severe fever and barely realise they are infected. However, most cases of malaria, especially in sub-Saharan Africa, are caused by Plasmodium falciparum, which is a faster-acting, more severe form of malaria and usually results in fever and chills, often accompanied by headache and nausea.