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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.

Brasilia, Jul 14: Brazil has reported new 20,286 coronavirus cases in last 24 hours taking the country's total to 1.8 million, Sputnik reported citing the health ministry.

The country's death toll has increased by 733 in the same period of time. The death toll from the infection has touched 72,833.

Over 1.1 million people have recovered from COVID-19 in Brazil since the start of the epidemic in the country, according to the health ministry.

Brazil has the second-highest coronavirus death toll, it is surpassed only by the United States.

Washington, Apr 24: President Donald Trump has favoured a phased reopening of the US economy, devastated by the coronavirus pandemic, which has claimed nearly 50,000 lives and infected over eight lakh people in the country.

More than 95 per cent of the country's 330 million people are under stay-at-home order as a result of the social mitigation measures, including social distancing, being enforced till May 1.

Trump on Thursday indicated that the stay-at-home order might be extended beyond May 1, but vehemently advocated the need to gradually open up the economy.

In the past few weeks, more than 26 million Americans have filed for unemployment benefits and the figure is soon likely to cross 40 million.

Both the World Bank and the International Monetary Fund (IMF) have projected a negative growth in the US in 2020.

To keep America gaining momentum, every citizen needs to maintain the vigilance, and we all understand that very well we've gone over it many, many times this includes practising good hygiene, maintaining social distance, and the voluntary use of face covering, Trump said.

Safe and phased reopening of our economy -- it's very exciting, but it does not mean that we are letting down our guard at all in any way; on the contrary, continued diligence is an essential part of our strategy to get our country back to work to take our country back, he told reporters at his daily White House news conference on coronavirus.

The data and facts on the ground suggest that the US is making great progress, he said.

In 23 states, new cases have declined. In the peak week, 40 per cent of the American counties have seen a rapid decline in new cases. As many as 46 states report a drop in patients showing coronavirus-like symptoms, he said.

Trump said the US is very close to finding a vaccine for COVID-19.

We are very close to testing... when testing starts it takes a period of time but we will get it done, he said.

According to Vice President Mike Pence, data continues to show promising signs of progress in the New York Metro area, New Jersey, Connecticut, Detroit and New Orleans. All appear to be passed their peak and we are seeing consistent declines in hospitalisation and cases in regions across the country, he said.