Pinyin/Smallpox

Smallpox is an acute contagious disease, caused by the variola virus. It is transmitted from person to person via infected aerosols and droplets from infected symptomatic people.

Symptoms appear 12–14 days after infection, and include fever, malaise, headache, prostration, severe back pain, and sometimes abdominal pain and vomiting. After 2–3 days, the body temperature falls and a rash appears, first on the face, hands and forearms, and later on the trunk.

Following a global WHO-led immunization campaign, smallpox was declared eradicated in 1980. It no longer occurs naturally, but stocks of the virus are still kept in two high-containment laboratories.

Tiānhuā shì yóu tiānhuā bìngdú yǐnqǐ de jíxìng chuánrǎnbìng, jīngyóu shòu gǎnrǎn de qìróngjiāo hé yǐjīng xiǎnxiàn zhèngzhuàng de shòugǎnrǎnzhě de fēimò zài rénjì chuánbō.

Shòu gǎnrǎn hòu 12-14 tiān chūxiàn fāshāo, bùshì, tóutòng, yūnjué, bèibù jùtòng děng zhèngzhuàng, yǒushí bànyǒu fùtòng hé ǒutù. 2-3 tiān hòu, tǐwēn xiàjiàng, shēnshang chūxiàn pízhěn, shǒuxiān zài miànjiá, shǒu, qiánbì shàng, ránhòu zài qūgàn shàng chūxiàn pízhěn.

WHO zhǔchí kāizhǎnle quánqiú miǎnyì jiēzhòng yùndòng, yú 1980 nián xuānbù xiāomièle tiānhuā. Zìránjiè zhōng yǐjīng méiyǒu tiānhuā, dàn réng yǒu liǎng gè gāo fánghù shíyànshì chúbèi tiānhuā bìngdú.