日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Top News

HK reports first proven COVID-19 case from reinfection

CHINA DAILY | Updated: 2020-08-26 07:32
Share
Share - WeChat
People wearing face masks following the coronavirus disease (COVID-19) outbreak walk at a shopping mall in Hong Kong, July 20, 2020. [Photo/Agencies]

A Hong Kong man who recovered from COVID-19 was infected again four-and-a-half months later in the first documented instance of human reinfection with the virus, researchers at the University of Hong Kong said on Monday.

The findings indicate the disease, which has killed over 800,000 people worldwide, may continue to spread globally despite herd immunity, they said.

The 33-year-old man was cleared of COVID-19 and discharged from a hospital in April, but tested positive again after returning from Spain via Britain on Aug 15. The patient had appeared to be previously healthy, researchers said in a paper that was accepted by the international medical journal Clinical Infectious Diseases.

He was found to have contracted a different coronavirus strain from the one he had previously, and he remained asymptomatic for the second infection.

The finding does not mean taking vaccines will be useless, said To Kai-Wang, one of the leading authors of the paper. "Immunity induced by vaccination can be different from those induced by natural infection," To said. "We will need to wait for the results of the vaccine trials to see how effective vaccines are."

World Health Organization epidemiologist Maria Van Kerkhove said on Monday that there was no need to jump to any conclusions in response to the Hong Kong case.

Studies tracking larger numbers of cases over time are needed to better understand the quality and durability of recovered patients' antibody response, she said.

Instances of people discharged from hospitals and testing positive again for COVID-19 infection have been reported on the mainland. However, in those cases it was not clear whether they had contracted the virus again after full recovery, as happened in the Hong Kong case.

David Hui Shu-cheong, a respiratory disease expert at the Chinese University of Hong Kong, said there's a lot of uncertainty about the virus, and he called on the recovered COVID-19 patients not to let their guard down and travel to high-risk countries.

Hong Kong's former secretary for food and health Ko Wing-man said the case tells people not pin too much hope on the herd immunity hypothesis. Ko said it remains important to take precautions.

In view of a "reassuring" declining trend in confirmed COVID-19 cases in the special administrative region, Hong Kong will relax social distancing rules starting on Friday, allowing dine-in service at restaurants until 9 pm and the removal of masks during outdoor exercise.

Lam Ching-choi, a specialist in pediatric and community medicine, suggested that people from all walks of life-but especially restaurant owners, schoolteachers and elderly caregivers-should be mentally prepared to coexist with the virus.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 久久久蜜桃 | 不卡一二三区 | 91精品天美精东蜜桃传媒入口 | av毛片| 天天做天天爱夜夜爽女人爽宅 | 碰碰碰精品视频在线观看 | 91在线品视觉盛宴免费 | 天天看天天爽天天摸天天添 | 天天久久狠狠色综合 | 国产精品爱久久久久久久电影 | 日韩一区二区免费视频 | 亚洲免费人成在线视频观看 | 亚洲 综合 欧美 动漫 丝袜图 | 99极品视频| 999毛片免费观看 | 一道本不卡一区 | 蜜桃精品噜噜噜成人av | 播播成人网 | 欧美日韩亚洲人人夜夜澡 | 天天精品在线 | 亚洲精品成人av久久 | 天天插夜夜 | 亚洲午夜精品aaa级久久久久 | 日韩精品中文字幕久久 | 国产成人精品久久二区二区91 | 色网在线| ⅴideo裸体秀hd| 99久热国产精品视频尤物不卡 | 99精品视频在线观看re | 久久国产精品超级碰碰热 | 国产视频一区二区 | 99热综合在线 | 超级碰碰碰频视频免费观看 | 久久草在线视频 | 成人tv| 午夜国产精品视频 | 国产精品成人观看视频国产 | 亚洲成人激情av | 男女一进一出无遮挡黄 | www.av在线| xxxx日本性|