Iran reports 22 deaths from coronavirus, 141 infected

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."

Beijing, Jun 16: The coronavirus situation in China's capital is "extremely severe", a city official warned Tuesday, as 27 new infections were reported from Beijing where a new cluster has sparked a huge trace-and-test programme.

The COVID-19 resurgence -- believed to have started at the sprawling Xinfadi wholesale food market in the capital -- has sparked alarm as China had largely brought its outbreak under control through mass testing and lockdowns imposed earlier in the year.

The new cases took the number of confirmed infections in Beijing over the past five days to 106, as authorities locked down almost 30 communities in the city and tested tens of thousands of people.

"The epidemic situation in the capital is extremely severe," Beijing city spokesman Xu Hejian warned at a press conference.

The World Health Organization had already expressed concern about the cluster, pointing to Beijing's size and connectivity.

Officials in the capital have said they will test stall owners and managers at all of the city's food markets, restaurants and government canteens.

Beijing's coronavirus testing capacity has been expanded to 90,000 a day, according to China's official news agency Xinhua.

On Tuesday, the capital's transport commission banned taxi- and ride-hailing services from driving out of the city, Xinhua reported, in another move to try and contain the new outbreak.

All indoor sports and entertainment venues in Beijing were ordered to shut on Monday, and some other cities across China warned they would quarantine those arriving from the capital.

The National Health Commission also reported four new domestic infections in Hebei province, which surrounds Beijing, and a case reported in southwestern Sichuan province was linked to the Beijing cluster.

Authorities were also racing to track people from Beijing who had travelled to other parts of China, and those who visited the capital have been encouraged to get tested.

Beijing spokesman Xu said: "High-risk people who have left Beijing must inform local authorities immediately."

Market inspections

Authorities shut down another market on Tuesday -- Tiantaohonglian in the central Xicheng district -- after one employee there was diagnosed with COVID-19, state broadcaster CCTV reported.

Seven residential estates surrounding that market were also locked down.

In total, Beijing officials said Tuesday they have disinfected 276 agricultural markets, closed 11 markets, and disinfected more than 33,000 food and beverage businesses in a bid to stamp out the new cluster.

Officials had warned Sunday that since May 30, 200,000 people had visited the Xinfadi market -- the original site of the new outbreak.

More than 8,000 workers from Xinfadi have been tested and sent to centralised quarantine facilities.

Until this recent outbreak, most of China's cases in recent months were nationals returning home as the pandemic spread to other countries.

China's Center for Disease Control and Prevention said Monday that the virus strain found in the Beijing outbreak was a "major epidemic strain in the European countries".

While the virus was detected on chopping boards used to handle imported salmon at Xinfadi, "it does not clearly or definitely indicate it's from imported seafood", Wu Zunyou, the body's chief epidemiologist, said in an interview with state broadcaster CCTV.

"Ever since new cases suddenly emerged in Beijing, we have tried to figure out the reasons for the outbreak since there were no COVID-19 cases found over the past two months," Wu Zunyou said.

"We came up with several possibilities, and the most likely one is that the carrier of the novel coronavirus comes from outside China or other parts of China and brought it here."

On Tuesday, another eight imported cases were reported.

Washington, May 1:The novel coronavirus, that has killed over 230,000 people globally so far and has shattered economies, emerged from a virology lab in the Wuhan city of China, US President Donald Trump claimed Thursday with a high degree of confidence.

"Yes, I have. Yes, I have," Trump told reporters at the East Room of the White House when asked if he has seen anything at this point that gives him a high degree of confidence that the Wuhan Institute of Virology is where the virus originated.

The president, however, refuse to provide any details, except for saying that investigations are on and it would be out soon.

Asked what gave him a high degree of confidence that the virus originated from the Wuhan Institute of Virology, he said, "I can't tell you that. I'm not allowed to tell you that."

The president, however, did not hold his Chinese counterpart Xi Jinping responsible for this. "I don't want to say that, I don't want to say that, but certainly it could have been stopped. It came out of China and it could have been stopped and I wish they had stopped it and so does the whole world wish they had stopped it."

Reiterating that this is something that could have been contained at Wuhan ground zero, he said that China could have contained it. "They were either unable to, or they chose not to. And the world has suffered greatly."

One of two things happened, he reasoned. "They either didn't do it and you know they couldn't do it from a competent standpoint or they let it spread and I would say probably it got out of control."

"But there's another case that how come they stopped all of the planes and all of the traffic from going into China, but they didn't stop the planes and the traffic from coming into the United States and from coming into all over Europe," he said, citing the example of Italy, the hardest-hit European country.

"This country (the US) is very lucky and I'm very lucky that I put the ban on China, as you know, very early on. In January, we put the ban on China and that was a very early day. That wasn't a late day, that was an early day. Then, we later put the ban on in Europe," he said.

Before holding them accountable, Trump said he wants to find out what happened. "I think we'll be able to get a very good -- a very powerful definition of exactly what happened. We're working on it strongly now and I think it's going to be very powerful," he said.

"But they could have stopped it. They are a very brilliant nation, scientifically and otherwise. It got loose, let's say, and they could have capped it. They could have stopped it, but they didn't. And they stopped the planes from going to China, but they didn't stop them from going to the rest of the world. What was that all about?” he asked.

"We should have the answer to that in the not-too-distant future and that will determine a lot how I feel about China," Trump said.

When asked if President Xi misled him, Trump said, "Something happened. I don't say misleading or not. I'll let you know that. I mean, I'll be able to give you that answer at some point in the hopefully not-too-distant future."

The entire world has suffered as a result of this, he said.

"We have had tremendous death and tremendous sorrow, sadness, and nobody's ever seen anything like it. So, have most of the countries of the world. They've suffered tremendously. It's something that is going to have to be dealt with. We'll have to see," said the president.