18 Questions
What are the four plasmodia that cause malaria?
Plasmodium Falciparum, vivax, ovale, malariae
What type of mosquito is the vector and definitive host for malaria?
Female Anopheles mosquito
What are the two phases in the life cycle of Plasmodium?
Sexual cycle (in mosquitoes) & asexual cycle (in humans)
Why is malaria caused by Plasmodium falciparum more severe?
Infection of more red blood cells, capillary occlusion, and cerebral malaria
What is the term for the cycle where schizonts are produced?
Schizogony
What is the name of the cycle where sporozoites are produced?
Sporogony
What is the term used to describe the dark color of the patient's urine in malaria cases?
Black water fever
How often does malaria caused by P.malariae recur?
Every fourth day
What is the timing of the fever cycle for P.falciparum?
72 hours
What is the timing of the fever cycle for plasmodia other than P.malariae?
48 hours
How is malaria primarily transmitted?
Mosquito bites
What are the two subtypes of tertian malaria and their respective causative agents?
Malignant malaria (P.falciparum) and benign malaria (P.vivax & P.ovale)
What are the common symptoms of malaria?
Fever, headache, myalgias, arthralgias, nausea, vomiting, abdominal pain, splenomegaly, hepatomegaly, and anemia.
How is malaria diagnosed in the laboratory?
Microscopic examination of blood using thick and thin Giemsa-stained smears.
What is the treatment for acute malaria?
Chloroquine.
What drugs are used for chloroquine-resistant strains of P. falciparum?
Mefloquine, quinine & doxycycline combination, atovaquone & proguanil, or artemisinins in combination with other antimalarial drugs.
What causes relapses in P. vivax and P. ovale malaria?
Hypnozoites latent in the liver.
What is used for prevention of malaria in travelers to areas with chloroquine-resistant strains?
Chemoprophylaxis.
This quiz covers the different types of Plasmodium causing malaria, including Plasmodium Falciparum, vivax, and ovale. It also discusses important properties of malaria such as the Anopheles mosquito being the vector and definitive host, and the two phases in the life cycle. Test your knowledge of Medical Virology and Parasitology with this quiz.
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