Lockdown hits Indian expats in Saudi Arabia hard. Will govt of India pay heed to their woes?

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.

Bengaluru, Feb 19: Playing down the simmering discontent among the disgruntled legislators who missed a cabinet berth again, Karnataka BJP on Tuesday denied any revolt brewing against Chief Minister B.S. Yediyurappa.

"An unsigned letter in Kannada circulating in the social media is bogus, as it was fabricated in the name of Santosh, a private secretary to Yediyurappa. No revolt is brewing against the Chief Minister," party spokesman G. Madhusudhana told news agency here.

In the second cabinet expansion on February 6, only 10 newly-elected legislators, who defected from the Congress and the Janata Dal-Secular (JD-S) in July, were inducted, leaving the party's many aspiring lawmakers miffed.

"The talk of about 20 loyal MLAs ganging up against Yediyurappa is a speculation as rumour mills are working overtime. No rebellion is brewing against the Chief Minister," asserted the official.

On the charge that Yediyurappa's younger son B.Y. Vijayandra was acting like a 'super or de facto CM' and medalling in the state administration, Madhusudhana said the latter was only assisting his father in party activities as he was also a party worker.

"As Yediyurappa is 76 years old and ageing, Vijayandra is helping his father in party affairs so that he (Chief Minister) could be free to attend to administration," Madhusudhana said.

Yediyurappa's elder son B.Y. Raghavendra is a three-time BJP Lok Sabha member from Shimoga in the state's Malnad area.

With six cabinet posts vacant in the 34-member ministry, many legislators, including eight-time MLA Umesh Katti, are upset that they have not been rewarded for their loyalty to the party even six months after the BJP returned to power again in the southern state.

On the purported meeting of about 20 BJP MLAs at the residence of state Industries Minister Jagadish Shettar here on Monday, Madhusudhana said it was a "get-together" as they were all in Bengaluru again to attend the budget session of the state legislature which began on Monday.

"There is no crisis in the party. Our government is stable and will complete the remaining three-year term in office till May 2023," he added.

Patna, Feb 21: The country is paying the price for failure to send Muslims to Pakistan and bring Hindus to India after the Islamic state came into being at the time of Independence, Union minister Giriraj Singh has said, triggering a fresh controversy.

The BJP leader made the remark in Purnea district in the Seemanchal region of Bihar which has a sizeable Muslim population and where the Begusarai MP was canvassing in favor of the Citizenship (Amendment) Act.

Highlighting the need for such a legislation, he told reporters late Thursday "when our forefathers were fighting for Independence from British rule, Jinnah was pushing for the creation of an Islamic state".

"Our forefathers, however, committed a mistake. Had they ensured that all our Muslim brothers were sent to Pakistan and Hindus brought here, the need for such a move (CAA) would not have arisen. This did not happen and we have paid a heavy price for it," the outspoken BJP leader said.

The CAA, which seeks to fast-track granting citizenship to non-Muslim refugees from Pakistan, Bangladesh and Afghanistan who might have fled their home countries because of religious persecution, has become a major bone of contention since it is feared that a country-wide National Register for Citizens (NRC) may follow.

The Narendra Modi government, which had formerly hinted that a country-wide NRC was on the anvil, seems to have put it on the backburner though a section of citizens across the country, especially Muslims, have been organizing protests out of fear that, if implemented, the NRC may result in a large number of people becoming stateless.

Singh has often been in the crosshairs of the opposition for placing his foot in the mouth. This time, however, his words were frowned upon even by NDA ally Lok Janshakti Party, founded by his cabinet colleague Ram Vilas Paswan and now headed by his son Chirag Paswan.

The young LJP chief, who kicked off a state-wide "Bihar First-Bihari First" yatra here Friday morning, to project the NDAs progressive face ahead of the assembly polls due later this year, expressed strong disapproval of Singh's utterance and noted the coalition had to suffer in the Delhi polls because of "divisive" remarks by BJP leaders.

"We are an NDA constituent but many times our coalition partners say things which the LJP does not at all agree with. This one (Giriraj Singhs statement) is such an example. Had a person of my party spoken in this fashion, I would have taken responsibility and acted," Paswan said.

He said he had placed his view repeatedly on record that the coalition had to suffer on account of divisive remarks, Paswan said in apparent reference to inflammatory speeches by BJP leaders like Union minister Anurag Thakur and BJP MP Parvesh Verma, among others.

"The people of Delhi voted on the basis of performance. We wish they do so again in Bihar and real issues don't get drowned in political cacophony.

"The Nitish Kumar government has accomplished a lot, though much more needs to be achieved. We wish to reach out to people with our vision for the future, said Paswan, before he embarked on the yatra on a customized bus decorated like a chariot in front of which he offered prayers and smashed a coconut.

Meanwhile, Giriraj Singh who loves to wear his Hindu nationalism on the sleeves was busy joining issue with Asaduddin Owaisi's AIMIM which has been under attack for controversial remarks by its leader Waris Pathan.

Sharing video of an old speech by Owaisis brother Akbaruddin which had landed him in jail, besides Pathan's recent remark, Singh asked the opposition RJD-Congress combine in Bihar and the "tukde tukde gang" whether they wanted to "convert India into Pakistan".