男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

Global EditionASIA 中文雙語Fran?ais
World
Home / World / Europe

No evidence suggests people with COVID-19 antibodies protected from secondary infection: WHO

Xinhua | Updated: 2020-04-26 07:04
Share
Share - WeChat
A logo is pictured on the headquarters of the World Health Organization ahead of a meeting of the Emergency Committee on the novel coronavirus in Geneva, Switzerland, Jan 30, 2020. [Photo/Agencies]

GENEVA -- There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection, the World Health Organization (WHO) said in a daily situation report on Saturday.

Although many studies show that people who recovered from COVID-19 have antibodies to the novel coronavirus, also known as SARS-CoV-2, the WHO noted, some of these people have very low levels of neutralizing antibodies in their blood.

"As of April 24, 2020, no study has evaluated whether the presence of antibodies to SARS-CoV-2 confers immunity to subsequent infection by this virus in humans," stressed the UN health agency.

Some countries have suggested that the detection of antibodies to the novel coronavirus could serve as the basis for an "immunity passport" or "risk-free certificate", which would enable individuals to travel or return to work, assuming that they are protected against re-infection.

However, there is still a lack of sufficient evidence for the effectiveness of antibody-mediated immunity to guarantee the accuracy of an "immunity passport" or "risk-free certificate, the WHO underlined, warning that "the use of such certificates may therefore increase the risks of continued transmission."

According to the UN agency, laboratory tests that detect antibodies to SARS-CoV-2 in people, including rapid immunodiagnostic tests, need further validation to determine their accuracy and reliability.

Most Viewed in 24 Hours
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: 电白县| 福贡县| 鹿邑县| 青河县| 当涂县| 扶沟县| 沂源县| 保德县| 林芝县| 呼和浩特市| 凤阳县| 盐池县| 五原县| 英吉沙县| 延安市| 镇赉县| 南陵县| 莲花县| 武宁县| 邢台市| 德庆县| 特克斯县| 武鸣县| 都昌县| 通州市| 新津县| 榆林市| 广南县| 东方市| 辽阳县| 江永县| 大连市| 台北县| 静乐县| 元氏县| 包头市| 栾川县| 遂宁市| 微山县| 根河市| 封丘县|