Dengue Fever in Thailand
This year, dengue fever is a big problem in
Thailand. Although you shouldn't worry about it too much, you should definitely
take some precautions when outdoors.
Mosquitoes find their victims by smell. Their
senses are trained to hone in on carbon dioxide and lactic acid because these
chemicals are emitted by warm-blooded animals, like us.
Chemical
repellents are great at repelling mosquitoes because DEET masks the smell of
carbon dioxide and lactic acid. When you wear DEET, mosquitoes cannot smell you
and tend to leave you alone.
Why Do Mosquitoes Like Some People More than Others?
You
may have noticed that mosquitoes are more attracted to some people than others.
This is because of smell and has nothing to do with blood-types.
Each
person has a distinctive smell. There are about 400 compounds that make up the
human scent and of those, about 30 have a masking effect. If any of these
30 compounds are more prominent in someone, it tends to make them less visible
to mosquitoes. Of course, where there is one extreme, there is always another
which means that some people are mosquito magnets.
Will Garlic Help to Keep Mosquitoes Away?
Eating
garlic offers mild protection from mosquitoes, both from the odor on your
breath as well as sulfur compounds that you emit through your skin.
The
smell of garlic is known to repel mosquitoes. For example, you can buy garlic
sprays to put on your garden if you don’t mind the yard smelling like an
Italian restaurant. Smearing your body with garlic-scented lotion is apparently
effective as well, although it will probably repel more than just mosquitoes.
Eating garlic may also give you some mild protection, both from the odor
on your breath as well as sulfur compounds that you emit through your skin
when you eat garlic.
In
the end, though, scientists estimate that genetics account for about 85% of our
attractiveness to mosquitoes, so we mosquito magnets may have to reconcile
ourselves to our fate.
Another
way to be less visible or less attractive to mosquitoes is not to exert
yourself too much when mosquitoes are around. When you exercise, you give
off more lactic acid and more carbon dioxide, which brings
them running (well, flying). This will be the one and only time when I’ll
be advising you to be more sedentary, so make the most of it!
Foods which Help You to Avoid Mosquito Bites ?
Eating
certain foods, especially foods that are salty or high in potassium, will
increase the amount of lactic acid that you give off. We all know which foods
are salty. As for potassium, the richest dietary sources
are fruits and vegetables and I don’t think I can quite
bring myself to recommend that you eat fewer fruits and vegetables—not even to
save you from the mosquitoes. The farthest I’m willing to go is to suggest
that you select blueberries, apples, watermelon, cucumbers, cabbage, and green
peppers, which are relatively low in potassium, instead of potatoes, prunes,
raisins, spinach, bananas, lima beans, and acorn squash, all of which are
particularly high in potassium.
Other Ways to Avoid Mosquito Bites
You
can also do yourself a favor by wearing light-colored clothing. But if all
this, plus a string of garlic around your neck and natural repellent sprays,
isn't keeping them away, it’s time to bring out the big guns. Although you
don’t want to be exposed to DEET any more than necessary, the dangers of
mosquito-borne illnesses like dengue fever are even more of a concern.
To
limit your exposure to DEET, wear long sleeves or pants to cover up as much of
your skin as possible. Then, spray a DEET-based repellant on your clothing as
well as on any exposed skin. Finally, remember to wash the repellent off
your skin as soon as you come inside and toss the clothes in the laundry!
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