科学美国人60秒 SSS Zika Linked to a Variety of Birth Defects
时间：2018-12-24 作者：英语课 分类：2017年Scientific American(一)月
Zika virus infection during pregnancy 1 has been linked to the abnormal brain development called microcephaly. Now a study finds more evidence for the connection.
Researchers at the CDC in the U.S. and the National Health Institute in Colombia found that the number of babies born with microcephaly in Colombia increased more than fourfold during a nine-and-a-half-month span in 2016 compared with the same span in 2015.
“And the peak of Zika virus outbreak in pregnant women was followed approximately six months later with a peak of microcephaly reported in the country.”
Margaret Honein, Chief of the Birth Defects Branch at the CDC and a senior author of the study. She says the finding is compelling evidence that the highest-risk period for Zika virus infection is sometime in the first half of pregnancy.
“So this both adds to the evidence and helps confirm that any country experiencing a large Zika virus outbreak should anticipate a large increase in microcephaly. This is not unique to one geographic 2 location, such as Brazil. What we’re seeing in Colombia is very similar to what was reported in Brazil.”
The study was in the CDC’s Mortality and Morbidity 3 Weekly Report. [Esther Liliana Cuevas et al., Preliminary Report of Microcephaly Potentially Associated with Zika Virus Infection During Pregnancy — Colombia, January–November 2016]
Honein says growing evidence now exists for an association between the virus and other defects related to a damaged central nervous system.
“These include defects like club foot, joint 4 contractures where the joints 5 are very, very stiff, and things like congenital deafness…and eye abnormalities.”
In the U.S., the most recent cases of local transmission of Zika have occurred in parts of Florida and Texas, and there are now more than 1,000 pregnancies 6 with laboratory evidence of Zika virus infection, plus more than 2,000 more in U.S. territories.
—Christine Herman
- Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
- Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
- The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
- Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法
- MC's also significantly reduce the morbidity and mortality induced by honeybee venom. 肥大细胞同样也能显著降低蜜蜂毒液诱发疾病的发病率和死亡率。 来自互联网
- The result shows that incidence of myopia morbidity is 44.84%. 结果表明：近视眼的发病率为44.84%。 来自互联网
- I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤，肩膀脫臼了。
- We wrote a letter in joint names.我们联名写了封信。
- Expansion joints of various kinds are fitted on gas mains. 各种各样的伸缩接头被安装在煤气的总管道上了。
- Expansion joints of various kinds are fitted on steam pipes. 各种各样的伸缩接头被安装在蒸气管道上了。
- Since the wartime population needed replenishment, pregnancies were a good sign. 最后一桩倒不失为好现象，战时人口正该补充。
- She's had three pregnancies in four years. 她在四年中怀孕叁次。