Twitter CEO trolled for carrying anti-Brahmin poster

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.

Singapore, Jun 2: Moody's Investors Service on Tuesday downgraded 11 Indian banks along with as many non-financial companies and infrastructure majors besides four government-related issuers following a downgrade of the Indian government's issuer rating to Baa3 from Baa2 with a negative outlook.

The rapid and widening spread of the coronavirus outbreak, deteriorating global economic outlook, volatile oil prices and asset price declines are creating a severe and extensive credit shock across many sectors, regions and markets, said Moody's.

The Indian banking sector has been affected given the disruptions to India's economic activity from the coronavirus outbreak, which is weakening borrowers' credit profiles, it added.

The 11 lenders include Bank of Baroda, Bank of India, Canara Bank, Central Bank of India, Export-Import Bank of India, HDFC Bank, Indian Overseas Bank, IndusInd Bank, Punjab National Bank, State Bank of India and Union Bank of India.

The 11 non-finance companies are Oil and Natural Gas Corporation, Hindustan Petroleum Corporation, Oil India, Indian Oil Corporation, Bharat Petroleum Corporation, Petronet LNG, Tata Consultancy Services, Infosys, Reliance Industries, UPL Corporation and Genpact.

The 11 infrastructure companies are NTPC, NHPC, National Highways Authority of India, Power Grid Corporation, Gail India, Adani Green Energy Restricted Group (RG-2), Adani Transmission Restricted Group, Adani Ports and Special Economic Zone, Adani Transmission, Adani Electricity Mumbai and Azure Power Solar Energy.

The four Indian government-related issuers are Indian Railway Finance Corporation, Housing and Urban Development Corporation, Power Finance Corporation and REC Ltd.

"Government-related issuers in India have been affected because of disruptions to India's economy which will weaken borrowers' credit profiles," said Moody's.