NDTV News

NDTV.com provides latest news from India and the world. Get today’s news headlines from Business, Technology, Bollywood, Cricket, videos, photos, live news coverage and exclusive breaking news from India.

https://www.ndtv.com/

Woman Selling Seafood At Wuhan Market Could Be first Known Covid Case.

Woman Selling Seafood At Wuhan Market Could Be first Known Covid Case

The research suggests the Huanan market was the source of the initial outbreak.

An accountant from Wuhan, China, widely thought to be first person with Covid-19 actually developed symptoms eight days later than initially reported, making a female seafood seller at the now infamous Huanan market the earliest known case.

The confusion was caused by complications from dental work that made the 41-year-old man sick on Dec. 8. A fever and other symptoms caused by coronavirus started Dec. 16, after multiple workers at the Huanan market were already exhibiting signs of infection, including the seafood vendor whose symptoms began Dec. 11, according to a study Thursday in the journal Science.

The accountant lived 30 kilometers (19 miles) from the market and had no connection to it. He was probably infected through community transmission after the virus began spreading in Wuhan, said Michael Worobey, head of ecology and evolutionary biology at the University of Arizona in Tucson and the author of the study.

Worobey's research suggests the Huanan market was the source of the initial outbreak and not just where the SARS-CoV-2 virus was amplified in a super-spreading event.

Scientists have yet to determine the origins of SARS-CoV-2. Debate about its genesis has coalesced around two competing ideas: a laboratory escape or a spillover from animals. Studies identifying closely-related coronaviruses, including in bats dwelling in limestone caves in northern Laos and in Cambodia, support the latter hypothesis, especially since live animals susceptible to the infection were known to be sold in wet markets in Wuhan, including the Huanan center.

No live mammals collected at the Huanan market or any other live-animal market in Wuhan has been screened for SARS-CoV-2–related viruses, and the Huanan market was closed and disinfected on Jan. 1, Worobey said.

“Nevertheless, that most early symptomatic cases were linked to Huanan Market -- specifically to the western section where raccoon dogs were caged -- provides strong evidence of a live-animal market origin of the pandemic,” he said.

Although it may never be possible to recover related viruses from animals since they weren't tested as Covid-19 emerged, conclusive evidence of a Huanan market origin via infected wildlife may come through analysis of spatial patterns of early cases, he said. Additional genomic data, including SARS-CoV-2-positive samples from the Huanan market, as well as additional epidemiologic data, could bolster the case, Worobey said.

“Preventing future pandemics depends on this effort,” he said.

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)

Related news
Biden should step down: Tyrus

Biden should step down: Tyrus

'The Big Saturday Show's' co-hosts debunk 'The View's' praise of Biden by explaining the impact of his policies. #FoxNews #TheBigSaturdayShow Subscribe to Fox News! Watch more Fox News Video: Watch Fox News Channel Live: FOX News Channel (FNC) is ...

I would give Biden a grade worse than F: GOP congressman.

I would give Biden a grade worse than F: GOP congressman.

Missouri Republican Jason Smith weighs in as pressure builds on Biden to bring down inflation #FoxNews Subscribe to Fox News! Watch more Fox News Video: Watch Fox News Channel Live: FOX News Channel (FNC) is a 24-hour all-encompassing news service...

Who is Ghislaine Maxwell and how did she know Epstein?.

Who is Ghislaine Maxwell and how did she know Epstein?.

British socialite Ghislaine Maxwell is the 9th daughter of the disgraced former media mogul, Robert Maxwell. The former girlfriend of paedophile Jeffrey Epstein is facing charges of sex trafficking and is accused of procuring teenage girls for Mr ...

Passengers arriving from SA react to quarantine policies.

Passengers arriving from SA react to quarantine policies.

Spreading cases of the Omicron variant of coronavirus are linked to travel from South Africa. Early signs suggest that the new strain may spread as fast or faster than Delta. Face coverings will become compulsory in shops and on public transport f...

Burkina Faso protest against Islamist terror turns violent - DW News.

Burkina Faso protest against Islamist terror turns violent - DW News.

Security forces have clashed with protesters in Burkina Faso's capital Ouagadougou. Tensions have been rising over the government's failure to rein in terrorist groups. Militants linked to al Qaida and the so-called Islamic State have killed thous...

1 57

South Africa: 'Variant spreading rapidly' says govt adviser Prof Barry Schoub.

South Africa: 'Variant spreading rapidly' says govt adviser Prof Barry Schoub.

South Africa's COVID-19 adviser, Prof Barry Schoub, tells Sky News that the Omicron variant is spreading rapidly in the country. SUBSCRIBE to our YouTube channel for more videos: Follow us on Twitter: Like us on Facebook: Follow us on Instagram: F...