When you see a small child scratching his or her bottom, what do you think of?
Well, you should be thinking of threadworms that all children seem to get. The
answer is always “a good worming”. Yes, we’ve all been down to the chemist shop
and bought a packet of ‘worming’ tablets, haven’t we?
However, you should not imagine that ‘worms’ stops there. I
can assure you that there are far more dangerous wrigglers out there in the
community. And our sandy beaches are the habitat for some of them.
My friends laugh at me when they see me walking along the
beach. Instead of letting the cool sand squish between my toes, I wear closed
shoes. Does this mean I am a pedantic pedestrian? Or a member of a weird
anti-sandal sect? Fortunately it is neither. I am just a trifle afraid of
Ancylostoma duodenale. And so should you!
Ancylostoma duodenale is one of the two hookworms that
can get their hooks into you (and me if I let them). The other is called
Necator americanus. These little chaps are roundworms between 7 to 13 mm
long and are far from rare. Approximately one-quarter of the world’s population
is infected with Hookworm.
So how do you get infected? Easy, the hookworm eggs are
passed in feces (or poop if you prefer) and infection results when you come in
contact with the eggs from the contaminated soil. The larvae enter through the
skin and travel to the lungs through the blood. They ascend the lungs through
the bronchi and trachea and are then swallowed. As the larvae pass into the
digestive tract, they attach themselves to the wall of the small intestine. Here
they mature into adult worms, mate and feed on the blood of the host. And adult
hookworms may live up to ten years.
Unfortunately many hookworm infestations do not produce
symptoms; however, there may be local irritation of the skin where the worm
penetrated or even an itchy rash. While going through the lungs, there may be
asthma-like symptoms or even pneumonia. The most common symptoms of Hookworm
infection, however, are from their taking up residence in the intestine.
Hookworm here can lead to abdominal pain, diarrhea, weight loss, loss of
appetite and excessive gas.
With long-standing infections, the intestine’s owner may
become anemic as the worms feed on the individual’s blood. This in turn leads to
the usual anemic symptoms including pale complexion, tiredness and weakness.
Diagnosis is done by looking for hookworm eggs in the stool
(by using a microscope). Blood tests will show the amount of blood loss and can
be used as a pointer towards the seriousness of the infestation.
Fortunately hookworm is treatable, generally with the drug
mebendazole. This drug cures more than 99 percent of all cases of hookworm if
given twice per day for three days. It kills both the worms and the eggs, but is
contraindicated during pregnancy. If anemia has become a problem, then iron
supplements can be given as well. Once treated, the symptoms settle quickly in a
few weeks at most.
So what can you do to avoid hookworms? Well since hookworm
infection comes from non-hygienic practices and fecal contact in the soil, my
shoes sound like a great idea, don’t you think? Never mind the problems with
hypodermic needles found in the sand in many countries these days!
Hookworm infections should be dealt quickly and stringently.
Known symptomatic infections should be treated rapidly and treatment given to
asymptomatic family members or neighbors. Strict attention to cleanliness and
sanitary practices is needed when a hookworm infection is detected to prevent
its spread. This means hygienic disposal of human waste, limiting skin contact
with soil and even water, where there is untreated sewage.
Hookworm can be a very serious illness so it is essential to
be aware of any change in one’s health status. Any difficulty breathing, rapid
heartbeat, chest or abdominal pain, bloody diarrhea, blood with coughing,
asthma-like symptoms, skin rashes, abdominal swelling or bloating,
lightheadedness or weight loss should be brought to your doctor’s attention.
Me? I’ll just keep wearing shoes!
