Malaria is an infectious disease caused by a parasite
which is transmitted from human to human by the bite
of infected female Anopheles mosquitoes. Once injected
into the bloodstream of a human host (via bite), the
parasite travels to the liver, undergoes alteration,
after which it is released back into the bloodstream
to invade the red blood cells. In the RBC, the
parasites multiply and cause the red blood cells to
rupture. The incubation time from mosquito bite to
infection ranges from 6 to 60 days, with variances
depending on the specific Malaria infection.
Causes
A bite from a mosquito infected with certain
parasites causes malaria. In extremely rare cases,
people can get malaria if they come into contact with
infected blood, or an unborn baby (fetus) may get the
disease from its mother. You cannot get malaria by
being near a person who has the disease.
Symptoms
Malarial attacks present over 4 to 6 hours with
shaking chills, high fever, and sweating, and are
often associated with fatigue, headache, dizziness,
nausea, vomiting, abdominal cramps, dry cough, muscle
or joint pain, and back ache. The attacks may occur
every other day or every third day.
Fever or other symptoms can develop in malaria as
early as 8 days or as late as 60 days after exposure
or stopping prophylaxis.
Treatment
Malaria can be cured if treated while in its early
stages. Most of the time antimalarial medications
effectively treat the infection; however, some malaria
parasites may survive because they are in the liver or
are resistant to the medication. Drugs include
chloroquine, mefloquine, primaquine, quinine,
pyrimethamine-sulfadoxine (Fansidar), and doxycycline.
Some plasmodium have developed resistance to certain
medications, and therefore, alternative medications
will be prescribed for you.