Scientists studying malaria believe they may have made a crucial breakthrough which could lead to the development of an effective vaccine against the disease.

The vaccine for hepatitis B, for instance, was developed in chimps, and they are still used to study hepatitis C and malaria, among other diseases.

He was a physician at the Johns Hopkins Hospital in Baltimore starting in 1895; he studied malaria and yellow fever.

He also began to study malaria working with Raimondo Feletti on malaria, especially bird malaria.

It took many years for scientists studying malaria to realise it was the mosquito that was important, not the messenger from the martians.

He studied malaria intensively for 11 years, from 1880 to 1891.

Ross studied malaria between 1882 and 1899, working at the Presidency General Hospital, Calcutta.

He studied malaria and the plague, amassing a collection of antiquities, which he exhibited along with devices of his own creation in the Museum Kircherianum.

Mason, who spent a year studying malaria on the Thailand-Myanmar border and later visited northeastern Myanmar, renders the place and its culture brilliantly.

"Ah, well, you see, if you are studying malaria, Mr. Hartman, you must live in the swamp, no?"