India re-elected to International Maritime Organisation Council

The coronavirus can stay aloft for hours in tiny droplets in stagnant air, infecting people as they inhale, mounting scientific evidence suggests.

This risk is highest in crowded indoor spaces with poor ventilation, and may help explain superspreading events reported in meatpacking plants, churches and restaurants.

It’s unclear how often the virus is spread via these tiny droplets, or aerosols, compared with larger droplets that are expelled when a sick person coughs or sneezes, or transmitted through contact with contaminated surfaces, said Linsey Marr, an aerosol expert at Virginia Tech.

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Aerosols are released even when a person without symptoms exhales, talks or sings, according to Marr and more than 200 other experts, who have outlined the evidence in an open letter to the World Health Organization.

What is clear, they said, is that people should consider minimizing time indoors with people outside their families. Schools, nursing homes and businesses should consider adding powerful new air filters and ultraviolet lights that can kill airborne viruses.

What does it mean for a virus to be airborne?

For a virus to be airborne means that it can be carried through the air in a viable form. For most pathogens, this is a yes-no scenario. HIV, too delicate to survive outside the body, is not airborne. Measles is airborne, and dangerously so: It can survive in the air for up to two hours.

For the coronavirus, the definition has been more complicated. Experts agree that the virus does not travel long distances or remain viable outdoors. But evidence suggests it can traverse the length of a room and, in one set of experimental conditions, remain viable for perhaps three hours.

How are aerosols different from droplets?

Aerosols are droplets, droplets are aerosols — they do not differ except in size. Scientists sometimes refer to droplets fewer than 5 microns in diameter as aerosols. (By comparison, a red blood cell is about 5 microns in diameter; a human hair is about 50 microns wide.)

From the start of the pandemic, the WHO and other public health organizations have focused on the virus’s ability to spread through large droplets that are expelled when a symptomatic person coughs or sneezes.

These droplets are heavy, relatively speaking, and fall quickly to the floor or onto a surface that others might touch. This is why public health agencies have recommended maintaining a distance of at least 6 feet from others, and frequent hand washing.

But some experts have said for months that infected people also are releasing aerosols when they cough and sneeze. More important, they expel aerosols even when they breathe, talk or sing, especially with some exertion.

Scientists know now that people can spread the virus even in the absence of symptoms — without coughing or sneezing — and aerosols might explain that phenomenon.

Because aerosols are smaller, they contain much less virus than droplets do. But because they are lighter, they can linger in the air for hours, especially in the absence of fresh air. In a crowded indoor space, a single infected person can release enough aerosolized virus over time to infect many people, perhaps seeding a superspreader event.

For droplets to be responsible for that kind of spread, a single person would have to be within a few feet of all the other people, or to have contaminated an object that everyone else touched. All that seems unlikely to many experts: “I have to do too many mental gymnastics to explain those other routes of transmission compared to aerosol transmission, which is much simpler,” Marr said.

Can I stop worrying about physical distancing and washing my hands?

Physical distancing is still very important. The closer you are to an infected person, the more aerosols and droplets you may be exposed to. Washing your hands often is still a good idea.

What’s new is that those two things may not be enough. “We should be placing as much emphasis on masks and ventilation as we do with hand washing,” Marr said. “As far as we can tell, this is equally important, if not more important.”

Should I begin wearing a hospital-grade mask indoors? And how long is too long to stay indoors?

Health care workers may all need to wear N95 masks, which filter out most aerosols. At the moment, they are advised to do so only when engaged in certain medical procedures that are thought to produce aerosols.

For the rest of us, cloth face masks will still greatly reduce risk, as long as most people wear them. At home, when you’re with your own family or with roommates you know to be careful, masks are still not necessary. But it is a good idea to wear them in other indoor spaces, experts said.

As for how long is safe, that is frustratingly tough to answer. A lot depends on whether the room is too crowded to allow for a safe distance from others and whether there is fresh air circulating through the room.

What does airborne transmission mean for reopening schools and colleges?

This is a matter of intense debate. Many schools are poorly ventilated and are too poorly funded to invest in new filtration systems. “There is a huge vulnerability to infection transmission via aerosols in schools,” said Don Milton, an aerosol expert at the University of Maryland.

Most children younger than 12 seem to have only mild symptoms, if any, so elementary schools may get by. “So far, we don’t have evidence that elementary schools will be a problem, but the upper grades, I think, would be more likely to be a problem,” Milton said.

College dorms and classrooms are also cause for concern.

Milton said the government should think of long-term solutions for these problems. Having public schools closed “clogs up the whole economy, and it’s a major vulnerability,” he said.

“Until we understand how this is part of our national defense, and fund it appropriately, we’re going to remain extremely vulnerable to these kinds of biological threats.”

What are some things I can do to minimize the risks?

Do as much as you can outdoors. Despite the many photos of people at beaches, even a somewhat crowded beach, especially on a breezy day, is likely to be safer than a pub or an indoor restaurant with recycled air.

But even outdoors, wear a mask if you are likely to be close to others for an extended period.

When indoors, one simple thing people can do is to “open their windows and doors whenever possible,” Marr said. You can also upgrade the filters in your home air-conditioning systems, or adjust the settings to use more outdoor air rather than recirculated air.

Public buildings and businesses may want to invest in air purifiers and ultraviolet lights that can kill the virus. Despite their reputation, elevators may not be a big risk, Milton said, compared with public bathrooms or offices with stagnant air where you may spend a long time.

If none of those things are possible, try to minimize the time you spend in an indoor space, especially without a mask. The longer you spend inside, the greater the dose of virus you might inhale.

Lucknow, Mar 3: Two days after wife of Kafeel Khan, who is booked under the National Security Act, alleged that her husband faced a threat to life in Mathura jail, where he is lodged for anti-CAA protests, the District Magistrate claimed that Khan was 'fully secure' in the jail.

"Kafeel Khan, who has been booked under the National Security Act (NSA) for alleged inflammatory statements during an anti-CAA protest in Aligarh, is absolutely fine and fully secure in Mathura jail. Allegations of 'inhuman' treatment being meted out to him are baseless," Mathura District Magistrate Sarvagya Ram Mishra said on Monday.

Also Read: Kafeel Khan’s wife fears threat to his life
Senior Superintendent of Mathura district prison, Shailendra Maitrey, said that Khan's condition is being monitored every half an hour and the report is written in the gate book. He said, his ECG is normal and blood pressure was also in control.

He said that Khan was demanding checkup from a cardiologist.

"Since no specialist is available in the government sector here, his request could not be complied with. However, the jail authorities have sent his request to chief medical officer and have asked him to make a specialist available," the jail official said.

He said Khan is in barrack, which is fully ventilated, and he shares it with 50-60 'good behaviour' prisoners.

It may be recalled that in a letter to the Chief Justice of Allahabad High Court, Additional Chief Secretary (Home), and Director General (Jail), Shabista Khan, wife of the jailed doctor, had alleged that her husband was being treated inhumanely in the jail.

She feared that an attempt could be made on her husband's life inside the jail. She had demanded adequate security for him and had urged that her husband should be kept away from active criminals lodged in the jail.

Khan was booked by Aligarh police on December 13 for delivering a provocative speech in Aligarh Muslim University (AMU) during an anti-CAA protest in the campus, a day earlier, and was arrested from Mumbai airport on January 29 by Uttar Pradesh special task force.

The Aligarh police had slapped the stringent National Security Act (NSA) against Khan on February 13 night, hours before he was expected to walk free from the Mathura jail, after he was granted bail by Aligarh's chief judicial magistrate on February 10.

New Delhi, May 17: Following the COVID-19-induced economic disruptions, up to 135 million jobs could be lost and 120 million people might be pushed back into poverty in India, all of which will have a hit on consumer income, spending and savings, says a report.

According to a new report by international management consulting firm Arthur D Little, the worst of COVID-19's impact will be felt by India's most vulnerable in terms of job loss, poverty increase and reduced per-capita income, which in turn will result in a steep decline in the Gross Domestic Product (GDP).

"Given the continued rise of COVID-19 cases, we believe that a W-shaped recovery is the most likely scenario for India. This implies a GDP contraction of 10.8 per cent in FY 2020-21 and GDP growth of 0.8 per cent in FY 2021-22," the report said.

India's COVID-19 tally has crossed 90,000 and the nationwide death toll has touched nearly 2,800 so far.

The report titled "India: Surmounting the economic challenges posed by COVID-19: A 10-point programme to revive and power India's post-COVID economy" said the 'collateral damage' of the forecasted GDP slowdown, will be felt most acutely in employment, poverty alleviation, per-capita income and overall nominal GDP.

"Unemployment may rise to 35 per cent from 7.6 per cent resulting in 136 million jobs lost and a total of 174 million unemployed. Poverty alleviation will receive a set-back, significantly changing the fortunes of many, putting 120 million people into poverty and 40 million into abject poverty," the report said.

"India is headed towards a W-shaped economic recovery with a potential GDP contraction of 10.8 per cent in FY21. An opportunity loss of USD 1 trillion is staring India in its face," said Barnik Chitran Maitra, lead author of the report and Managing Partner & CEO of Arthur D Little, India and South Asia.

Maitra further said "for its USD 5 trillion vision, a radical economic approach is needed, centred on an immediate stimulus and structural reforms. The Prime Minister's visionary 'Atma Nirbhar Bharat Abhiyan' is a good start to this new approach."

The report lauded the steps taken by the government and the Reserve Bank of India, but said a far more assertive approach may be required given the magnitude of the adverse economic output.

The report suggested a 10-point programme to accelerate the recovery which include strengthening the 'safety net' significantly for the most vulnerable, enable survival of small and medium businesses, restarting the rural economy and providing targeted assistance to at-risk sectors.

It further said the government should launch "Make in India 2.0" to capture global opportunities, build 'Modern India', accelerate Digital India and Innovation, strengthen global investment corridors with the US, UAE, Saudi Arabia, Japan and the UK, debottleneck land and labour and transform banking and financial markets in a bid to secure a sustainable economic future for 1.3 billion Indians.