For both P. vivax and P. ovale, clinical relapses may occur weeks to months after the first infection, even if the patient has left the malarious area.

至于间日疟和卵形疟，即使患者已经离开疟疾流行区，仍可能会在初次感染数周至数月后临床复发。

youdao

More than one-third of the 108 malarious countries (9 African countries and 29 outside of Africa) documented reductions in malaria cases of more than 50% in 2008 compared to 2000.

与2000年相比，2008年在108个疟疾流行国家中，三分之一以上国家(9个非洲国家和29个非洲以外国家)有记录的疟疾病例下降了50%以上。

youdao

Safe in a Pullman, I have whirled through the gloomy, Godforsaken villages of Iowa and Kansas, and the malarious tidewater hamlets of Georgia.

我曾安安稳稳地坐着普尔曼卧车，周游了衣阿华州和堪萨斯州那些昏暗凄凉的村镇以及佐治亚州那些乌烟瘴气的沿海渔村。

youdao

Mr Gates pretended to release a few malarious mosquitoes into the conference hall, but the main part of his talk was to ask what qualities it takes to make a teacher great, and to bemoan the fact that so little scientific research has been carried out into this vital and rather obvious question.

ECONOMIST: How to party and learn at the same time