Yellow fever is a viral disease, found in tropical regions of Africa and the Americas.

黄热病是一种病毒性疾病，见于非洲和美洲的热带地区。

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Lymphatic filariasis, commonly known as elephantiasis, is a neglected tropical disease.

淋巴丝虫病，俗称象皮病，是一种被忽视的热带疾病。

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These include places like Central Asia and the Caucasus, where falciparum is unknown—for, unlike falciparum, which is genuinely a tropical disease, vivax can thrive in temperate climes.

这些国家包括中亚和高加索地区，该地居民对恶性疟一无所知，因为恶性疟是地道的热带疾病，而相反，间日疟能在温带气候地区繁殖。

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The International Institute for Tropical Agriculture says the disease is widely found in Gabon,Angola,Malawi, and the Democratic Republic of Congo.

VOA: special.2009.09.21

Recently,some experts have suggested that he might have become infected with a tropical disease.

VOA: special.2009.02.25

Buruli ulcer is a disease found in tropical climates.

VOA: special.2009.04.06

Unfortunately, this variety, planted in hundreds of millions of acres in Central America, fell prey to a disease, Tropical Race One.

FORBES: Banana Fungus Threatens World Crop

U.N. scientific experts say a warmer world is likely to spread disease in tropical regions, cause sea levels to rise and increase the rate of severe storms.

CNN: Global warming may 'double heat deaths'

On the second of two trips to Congo, he fell sick with a tropical disease and died.

ECONOMIST: Bill Hamilton