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Jamnagar, Apr 7: A 14-month-old baby boy, who had tested positive for coronavirus in Gujarat's Jamnagar district on April 5, died of multiple organ failure on Tuesday, said officials.

The toddler, son of a migrant labourer-couple having no recent travel history, died in the evening at a government hospital in Jamnagar, said an official release.

He was in a critical condition ever since he was admitted to the hospital, it said.

The boy, who tested positive for coronavirus two days ago, was as on ventilator support and eventually died due to multiple organ failure, said the release.

He becomes the youngest patient to succumb to COVID-19 in Gujarat, where the death toll has now gone up to 16.

The baby was the first and the only case of coronavirus infection so far in entire Jamnagar district and the youngest to be diagnosed with the disease in Gujarat.

Ever since he tested coronavirus positive, the authorities had been tracing the source of his infection.

His parents are from Uttar Pradesh and work as casual labourers in factories in the port city.

His parents, who have no travel history in the recent past, are asymptomatic (not showing symptoms) and kept under quarantine, officials said.

The locality where the couple resides in Dared village near Jamnagar city has been put under complete lockdown to check the spread of the virus, they said.

Gujarat has so far recorded 175 coronavirus positive cases and 16 fatalities.

Ahmedabad, Jul 23: Private schools in Gujarat have suspended online classes for an indefinite period from Thursday, after a state government order said they should not collect fees from students until the schools reopen.

In a notification issued last week, the Gujarat government directed self-financed schools in the state not to collect tuition fees from students as long as they remain shut in the wake of the COVID-19 pandemic.

It also asked these schools not to hike fees for the academic year 2020-21.

Unhappy with the move, a union of representing nearly 15,000 self-financed schools in Gujarat decided to put on hold online classes, an alternative arrangement started earlier this month for students.

Majority of these schools informed the parents through SMS on Wednesday night that there will not be any online classes for their wards from Thursday.

Self-financed School Management Association's spokesperson Dipak Rajyaguru on Thursday said almost all the self-financed schools in the state refrained from imparting online education.

"If the government believes online education is not real education, then there is no meaning of imparting such unreal education to our students. Online education will remain suspended until the government withdraws that notification," Rajyaguru said in a statement.

He said the association will also approach the high court against state government's decision.

Jatin Bharad, a prominent educationist and member of the association, said there is no alternative to online education in the present scenario.

"Self-financed schools need to pay salaries to the teachers and other staff. No state in India has taken such decision that fees cannot be collected despite conducting online classes. If we adhere to the state notification, it will be impossible for us to pay salaries and run the school.

Thus, we have decided to suspend the online classes," said Bharad said.

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.

Follow latest updates on the Covid-19 pandemic here

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.