Malaria and Pregnancy

QUESTION

Can your baby become immune if you’re pregnant and you have malaria?

ANSWER

Some of the protective antibodies that the mother produces when she has malaria can pass to her baby via the placenta. There is also evidence for immune system “priming” in foetuses when their mothers have been infected my malaria during pregnancy. However, these potentially protective effects are usually far outweighed by the negative effects of malaria during pregnancy.

Due to changes to the mother’s immune system and also perhaps due to the creation and physiology of the placenta, pregnant women are very vulnerable to malaria. For reasons which are not fully understood, women experiencing their first pregnancy (primagravidae) are most susceptible to malaria and their foetuses are most likely to have severe effects. These effects vary depending on the immune status of the mother and whether she is from an endemic or low transmission malaria environment, but typical results include low birth weight, anaemia and spontaneous abortion—abortion rates due to malaria can vary between 15-70%.

There is also the risk (up to 33% in some studies) that malaria will pass directly from the mother to the baby, either through the placenta or in blood during childbirth—this is called “congenital malaria,” and can manifest as early as 1 day after delivery but a late as months after. The symptoms are similar to that of adult malaria, with fever, anaemia, lethargy, etc.

Given these negative effects, it is very important to protect pregnant women against malaria, and bednet distribution schemes in many places target these women. In high transmission settings, women may also be offered intermittent preventive therapy (IPT) which consists of at least two doses of anti-malarial medication, usually once during the second and once during the third trimester.

Years of ill health – could it be malaria-related?

QUESTION

I wonder if I have a long term relapsing form of malaria and would really appreciate your advice.

I have worked coming and going between the UK and Kenya, Ethiopia and Eritrea for about 17 years in aid/international development (rural and urban areas). I stopped travelling to the region about 2 years ago. One of the reasons to stop this work was my poor health.

Since about 15 years I started developing a number of chronic somewhat overlapping problems that have made work difficult and year after year just won’t go away, even now that my life is purely Europe-based. One of these may be unassociated with working specifically in such tropical areas but rather a result of general stress.

This first condition (or group of ailments) is always with me to some extent or another and is something like repetitive strain injury from too much computer use under stress, which especially affected my hands neck and back. Now it is more like generalised chronic pain (bone and muscle aches and weakness, numbness or inability to use at all in bad phases). This pain is kind of background noise with intense flare-ups by now, but I do sometimes wonder if it IS related to other symptoms which seem to present as two distinct cyclical conditions.

What i wonder if either of these two could be directly related to malaria or malaria pill use—or the result of another parasite (i.e. I developed a lump in my ankle which the doctor thought was related to sulphonamide allergy from anti-malarials, but later a lot of egg-white like substance burst from several spots on my feet when in a hot bath—parasite eggs? and ?the parent got digested by my body?).

The symptoms of the two recurring problems are: (1) often hungry and weak with nausea and fuzzy brain/poor focus/concentration, and very occasionally flashing lights in my eyes for a short period and inability to express myself clearly, feel better immediately on eating

(2) about every two to three months I have several weeks of quite bad flu-like/viral-type symptoms: general aches (distinct from the chronic pain), sore throat and slight nasal congestion that doesn’t turn into a cold, bad headache, pronounced fatigue, slight nausea, general feeling of ill health. This often seems accompanied by general but not so acute loose bowel movements.

I seem to have experienced the first group of symptoms for years, perhaps before travelling for work as I have always been the type to need a lot of food and I burn it quickly. But the symptoms are getting more pronounced and constant as I get older (I’m now 46).

The second group of symptoms I have in cyclical patches both in the UK and while travelling. However when travelling in East Africa the symptoms became much more pronounced e.g. the fatigue much greater, the cold symptoms turned into something more acute and I sometimes lost my voice even and had intense pain on the roof of my mouth as though someone had grated it with a cheese-grater, the diarrhoea became very bad and acute.

I used to think I had eaten bad food, was affected by the high altitude, developed a weakness to the prevalent upper respiratory infections so many rural people had, got over run-down from too much work travel and heat etc. etc. I felt I had to carry out my work trips on adrenilin each time.

But actually I realised I got a reduced version of the same things back home months after travelling.

I also wondered if I was badly affected by too many vaccines over the years, and also the fact that I had become allergic to anti-malarial pills. In recent years I took the antibiotic instead of straight anti-malarials as I had developed problems with each kind (e.g. Larium I got severely depressed and otherwise had symptoms of sulphonamide allergy.).

But in wracking my brain as to what is wrong with me year after year I of course think of malaria as well as other options. I wonder if I DID contract malaria but was never properly treated for it (rather the anti-malarials will have kept it in a weaker version?). And if so could ALL my symptoms (e.g. all 3 chronic conditions I can identify, or maybe the second two only) be those of malaria lodged in my system and recurring and recurring?

My apologies for the long-winded explanation, hope it makes sense. But as you can imagine I am getting very worn down by all this and no UK doctor seems to find a solution. I have seen different specialists over the years including tropical medicine people but again, no final diagnosis.

I really hope for your help or advice. If not a mosquito do you think the worm is something to try and find out more about. They never tested that because the (? adult parasite?) lump in my leg went away and as regards the egg white in the bath (about 8 months later) I didn’t know what it was and only afterwards thought it had to be eggs!

Everyone in my work team apart from me contracted malaria of some kind in the region over the years. And I appeared to be the only person not to, but my health problems go on and on.

I look forward to your thoughts or ideas from others in this forum.

With thanks and best wishes, PM

ANSWER

Thanks for writing in, PM. I passed your message on to two medical doctors that serve as advisors to malaria.com. I have summarised their responses below, though both agree your symptoms do not sound like they are due to recurring malaria, at least not by itself.

Persistent anaemia (a common cause of fatigue and general malaise) post-malaria treatment would have been identified and treated long ago by most physicians.  Signs of malaria, acute or relapsing, are much more distinctive and lacking in this person’s description of  his/her symptoms.

Something that has gone on this long without killing the patient, without producing some unusual finding on exam, or showing some hint of itself in standard labwork is likely constitutional or the result of repeat assault on the immune system.  Drug allergies, especially to sulfonamide-based drugs, are more apparent or pronounced in persons with chronic viral illnesses—for example this is often seen with HIV—up to 30% of HIV patients develop rash or fever to sulfonamide prescriptions, a much greater proportion than the general population.  The mechanism for this reaction is thought to be some type of immune priming by the virus causing the system to overreact when presented with  new antigens.  In the long term, this “chronic immune stimulation” eventually results in immune dysregulation, and the many symptoms described by this person (fatigue/aches/gastrointestinal disturbance/mental fog…) can result.  So many factors can contribute—repeated bouts of malaria, medications used as treatment, intercurrent viral infections (for which there are no commercial diagnostic tests nor specific treatment), other parasitic disease—strongyloidiasis/filariasis/Toxocara, the immeasurable immune stresses of frequent travel.  The most common discoverable and TREATABLE entity in this case might be gut parasites, but it might also be assumed that these have been caught by doctors by now.

Minimum evaluation (assuming that basic blood work and chemistries are normal) should include thyroid and hormone evaluation, glucose tolerance, gluten tolerance, HIV and EBV studies and at least a screen for Borrelia/treponemes/Bartonella etc.  It is unlikely that a hormone-secreting tumor would go undiagnosed this long, rather, the “hunger” is perhaps due to CHO sensitivity/insulin sensitivity (hypoglycemia).  A re-exam for gut parasites using antigen stool studies and endoscopy if indicated.  The aches are non-specific, but could be related to waning hormone levels (androgens OR oestrogens), vitamin D deficiency, immune dysregulation as discussed, or even autoimmune disease.

As such, the spectrum of possibilities is wide, but hopefully the above might give you some ideas to discuss with your doctor at a future visit. Also, since you are UK-based, if you haven’t already I would suggest you try to get an appointment with the Hospital for Tropical Diseases on Warren Street in London. They have wonderful diagnosticians with expertise in rare tropical infections, and so might be able to pick up the more unusual parasites/bacteria mentioned above.

Good luck!