malaria
n[U]
fever produced when germs are introduced into the blood by a bite from certain mosquitoes 疟疾
a bad attack of malaria 严重的疟疾
[attrib 作定语]
a malaria sufferer 疟疾病人.
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189