Wuhan woman with no symptoms infects five relatives with coronavirus: Scientists

News Network
February 22, 2020

Feb 22: A 20-year-old Chinese woman from Wuhan, the epicentre of the coronavirus outbreak, travelled 400 miles(675 km) north to Anyang where she infected five relatives, without ever showing signs of infection, Chinese scientists reported on Friday, offering new evidence that the virus can be spread asymptomatically.

The case study, published in the Journal of the American Medical Association, offered clues about how the coronavirus is spreading, and suggested why it may be difficult to stop.

"Scientists have been asking if you can have this infection and not be ill? The answer is apparently, yes," said Dr. William Schaffner, an infectious disease expert at Vanderbilt University Medical Center, who was not involved in the study.

China has reported a total of 75,567 cases of the virus known as COVID-19 to the World Health Organization (WHO) including 2,239 deaths, and the virus has already spread to 26 countries and territories outside of mainland China.

Researchers have reported sporadic accounts of individuals without any symptoms spreading the virus. What's different in this study is that it offers a natural lab experiment of sorts, Schaffner said.

"You had this patient from Wuhan where the virus is, travelling to where the virus wasn't. She remained asymptomatic and infected a bunch of family members and you had a group of physicians who immediately seized on the moment and tested everyone."

According to the report by Dr Meiyun Wang of the People's Hospital of Zhengzhou University and colleagues, the woman travelled from Wuhan to Anyang on Jan. 10 and visited several relatives. When they started getting sick, doctors isolated the woman and tested her for coronavirus. Initially, the young woman tested negative for the virus, but a follow-up test was positive.

All five of her relatives developed COVID-19 pneumonia, but as of Feb. 11, the young woman still had not developed any symptoms, her chest CT remained normal and she had no fever, stomach or respiratory symptoms, such as cough or sore throat.

Scientists in the study said if the findings are replicated, "the prevention of COVID-19 infection could prove challenging."

Key questions now, Schaffner said, are how often does this kind of transmission occur and when during the asymptomatic period does a person test positive for the virus.

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News Network
January 15,2020

Jan 15: Amazon.com Inc Chief Executive Officer Jeff Bezos is facing a bitter welcome during his India visit this week as the country’s antitrust regulator initiated a formal investigation just hours before his arrival and trader bodies comprising millions of infuriated small store owners announced demonstrations.

Bezos is in New Delhi for the Smbhav summit, an Amazon India event for small and medium businesses. The billionaire is scheduled to conduct a fireside chat with Amazon India chief Amit Agarwal, anchoring an event that also features Infosys Ltd. co-founder Narayana Murthy and retail billionaire Kishore Biyani, who recently sold a stake in his retail group to Amazon. Ahead of the event, Bezos paid his respects at Mahatma Gandhi’s memorial, wearing a white tunic and a rust-colored Indian vest.

The small businesses that Amazon’s CEO is hoping to endear himself to, however, are organizing in opposition. The Confederation of All India Traders announced that members of its affiliate bodies across the country would stage sit-ins and public rallies in 300 cities to raise a war cry against the world’s largest online retailer. In a letter to Prime Minister Narendra Modi last week, the confederation’s Secretary General Praveen Khandelwal alleged that Amazon, much like Walmart Inc.-owned Flipkart, was an “economic terrorist” who engaged in predatory pricing that deprived the government of tax revenue and “compelled the closure of thousands of small traders.”

India’s e-commerce market is projected to grow to $150 billion by 2022, according to a 2018 report by software industry group Nasscom and consulting firm PwC India. Competition for this rapidly expanding sector is intensifying as Asia’s richest man, Mukesh Ambani, prepares to go live with JioMart, an online shopping platform challenging Amazon and Walmart directly. The latter’s Flipkart Online Services Pvt is also delving deeper into the countryside in its pursuit for more customers. Amazon, for its part, opened a huge office complex in the southern city of Hyderabad in September, underscoring its commitment to the country.

The Competition Commission of India said it would probe the deep discounts, preferential listings and exclusionary tactics that Amazon and Flipkart are alleged to have used as anti-competitive levers. India’s trade bodies have long argued that both retail giants were flouting rules by promoting sales and discounts through their favoured sellers, many of whom they have preexisting commercial arrangements. The regulator has ordered for the investigation to be completed within two months.

Bezos last visited India in 2014 under starkly different circumstances. During that trip, the Amazon founder wore local festive garb, rode atop a festooned truck for a photo opp and presented Amazon’s Indian unit with a giant check for $2 billion. Since then, Amazon has pledged a further $3.5 billion to expand in the country.

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News Network
February 28,2020

Feb 28: The best economic tonic for the coronavirus shock is to contain its spread and worry about stimulus later, said Raghuram Rajan, former head of the Reserve Bank of India.

There’s little central banks can do, and while more government spending would help, the priority should be on convincing companies and households that the virus is under control, he said.

“People want to have a sense that there is a limit to the spread of this virus perhaps because of containment measures or because there is hope that some kind of viral solution can be found,” Rajan told Bloomberg Television’s Haidi Stroud Watts and Shery Ahn.

“At this point I would say the best thing that governments can do is to really fight the epidemic rather than worry about stimulus measures that comes later,” said Rajan, who is currently a professor at the Chicago Booth School of Business.

The spread of coronavirus is pushing the world economy toward its worst performance since the financial crisis more than a decade ago.

Bank of America Corp. economists warned clients Thursday that they now expect 2.8% global growth this year, the weakest since 2009.

“We have moved from extreme confidence in markets to extreme panic, all in the space of one week,” said Rajan, who previously was chief economist at the International Monetary Fund.

The virus outbreak will force companies to rethink supply chains and overseas production facilities, he said.

“I think we will see a lot of rethinking on this, coming on the back of the trade disruption, now we have this,” Rajan said. “Globalization in production is going to be hit quite badly.”

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News Network
June 13,2020

Jun 13: Requiring the wearing of masks to prevent the spread of the novel coronavirus in areas at the epicenter of the global pandemic may have prevented tens of thousands of infections, a new study suggests.

Mask-wearing is even more important for preventing the virus' spread and the sometimes deadly COVID-19 illness it causes than social distancing and stay-at-home orders, researchers said, in the study published in PNAS: The Proceedings of the National Academy of Sciences of the USA.

Infection trends shifted dramatically when mask-wearing rules were implemented on April 6 in northern Italy and April 17 in New York City - at the time among the hardest hit areas of the world by the health crisis - the study found.

"This protective measure alone significantly reduced the number of infections, that is, by over 78,000 in Italy from April 6 to May 9 and over 66,000 in New York City from April 17 to May 9," researchers calculated.

When mask-wearing went into effect in New York, the daily new infection rate fell by about 3% per day, researchers said. In the rest of the country, daily new infections continued to increase.

Direct contact precautions - social distancing, quarantine and isolation, and hand sanitizing - were all in place before mask-wearing rules went into effect in Italy and New York City. But they only help minimize virus transmission by direct contact, while face covering helps prevent airborne transmission, the researchers say.

"The unique function of face covering to block atomization and inhalation of virus-bearing aerosols accounts for the significantly reduced infections," they said. That would indicate "that airborne transmission of COVID-19 represents the dominant route for infection."

The U.S. Center for Disease Control and Prevention on Friday urged organizers of large gatherings that involve "shouting, chanting or singing to strongly encourage the use of cloth face coverings to lower the risk of spreading the coronavirus."

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