Number of 'crorepatis' has risen by 60% in last four years: CBDT

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."

New Delhi, Dec 24: The Delhi Police said that a head constable was killed during clashes over the Citizenship Amendment Act (CAA) in northeast Delhi today.

Deputy Commissioner of Police, Shahdara, Amit Sharma was also injured during clashes, a senior official said. Sharma suffered injuries to his head and hand. He was hospitalised and is doing fine, the official added.

Tension escalated in northeast Delhi with protesters torching at least two houses and a fire tender in the Jaffrabad and Maujpur areas, where pro and anti-CAA groups clashed for the second consecutive day on Monday and hurled stones at each other.

Violence was also reported from the Chandbagh area in Jaffrabad.

Police fired tear gas shells and also resorted to lathicharge to disperse the protesters.

According to officials, a fire tender was damaged by the protesters after it responded to a fire call in the area.

The Delhi Metro closed entry and exit at the Jaffrabad and Maujpur-Babarpur stations as an uneasy calm prevailed in the area.

"Entry & exit of Jaffrabad and Maujpur-Babarpur are closed. Trains will not be halting at these stations," the Delhi Metro Rail Corporation (DMRC) said in a tweet.

Entry and exit were closed at the Jaffrabad metro station for over 24 hours.

Clashes broke out on Sunday evening between pro and anti-CAA groups near Jaffrabad after a large number of people protesting against the Citizenship (Amendment) Act (CAA) blocked a road, while similar sit-ins were launched in several other parts of the national capital.

Delhi chief minister Arvind Kejriwal has urged lieutenant governor of Delhi and the Union home minister to restore order.

Nobody should be allowed to orchestrate violence, he said.

Delhi Lt Governor Anil Baijal instructed the police commissioner to maintain law and order in the national capital in the wake of violence.

"Instructed @DelhiPolice and @CPDelhi to ensure that law and order is maintained in North East Delhi. The situation is being closely monitored. I urge everyone to exercise restraint for maintenance of peace and harmony," Baijal tweeted.

Delhi minister and Babarpur MLA Gopal Rai on Monday urged the people in the area to maintain peace, saying some people were purposely trying to disturb the atmosphere.

"With folded hands, I request people in Babarpur Assembly to maintain peace. Some people are purposely trying to spoil the atmosphere. I have spoken to Delhi LG and he has assured me that more policemen will be deployed to bring the situation under control," Rai said in a tweet.