Question

Maximum chances of relapse of malaria occurs by which two species?

• A. ovale and faliciparum
• B. falciparum and malariae
• C. ovale and falciparum
• D. vivax and ovale

Answer 1

Answer: (D)

vivax and ovale

Malaria is a chronic disease, which has a tendency to relapse or recrudesce. Relapse with regards to malaria refers to the reactivation of the infection via hypnozoites. Relapse occurs in P.vivax and P. ovale infections after the delayed development of the liver-stage parasites, that have not been treated adequately with a tissue schizonticide.
So, the correct answer is option D.