90 pc works completed, party launch at appropriate time : Rajinikanth

New Delhi, Jul 25: The Indian Air Force (IAF) has made key appointments in its different commands all across the country including formations that look after operations along the borders with China and Pakistan.

Air Marshal Vivek Ram Chaudhari has been appointed as the head of the Delhi-based Western Air Command (WAC) which looks after both the crucial borders, with China in Ladakh and all along Pakistan from Ladakh up to Bikaner in Rajasthan.

Chaudhari would be assuming charge of the new office on August 1, replacing Air Marshal B Suresh who is superannuating after a brief tenure of nine months there.

In the Shillong-based Eastern Command, incumbent Air Marshal RD Mathur would be moving to the Bangalore-based Training Command on October 1, he will be replaced by Air Marshal Amit Dev. The Eastern Command looks after the entire Northeastern region including the border with China from Sikkim to Arunachal Pradesh.

As per the new appointments issued on July 24, Kargil war gallantry awardee Air Marshal Dilip Kumar Patnaik would be taking over as the Senior Air Staff Officer (SASO) at the Prayagraj-based Central Air Command.

On October 1, the Air Force would also get a new in-charge of personnel in Air Marshal RJ Duckworth who is presently the SASO in the WAC.

Air Marshal Vikram Singh would be the next SASO of the WAC. Air Marshal J Chalapati-- the officer who had briefed the Supreme Court on the Rafale issue last year, would be the SASO of the Trivandrum-based Southern Air Command.

United Nations, Jun 6: The coronavirus disease has not "exploded" in India, but the risk of that happening remains as the country moves towards unlocking its nationwide lockdown that was imposed in March to contain the Covid-19, according to a top WHO expert.

WHO Health Emergencies Programme Executive Director Michael Ryan on Friday said the doubling time of the coronavirus cases in India is about three weeks at this stage.

“So the direction of travel of the epidemic is not exponential but it is still growing,” he said, adding that the impact of the pandemic is different in different parts of India and varies between urban and rural settings.

“In South Asia, not just in India but in Bangladesh and...in Pakistan, other countries in South Asia, with large dense populations, the disease has not exploded. But there is always the risk of that happening,” Ryan said in Geneva.

He stressed that as the disease generates and creates a foothold in communities, it can accelerate at any time as has been seen in a number of settings.

Ryan noted that measures taken in India such as the nationwide lockdown have had an impact in slowing transmission but the risk of an increase in cases looms as the country opens up.

“The measures taken in India certainly had an impact in dampening transmission and as India, as in other large countries, open up and as people begin to move again, there's always a risk of the disease bouncing back up,” he said.

He added that there are specific issues in India regarding the large amount of migration, the dense populations in the urban environment and the fact that many workers have no choice but to go to work every day.

India went past Italy to become the sixth worst-hit nation by the COVID-19 pandemic.

India saw a record single-day jump of 9,887 coronavirus cases and 294 deaths on Saturday, pushing the nationwide infection tally to 2,36,657 and the death toll to 6,642, according to the health ministry.

The lockdown in India, was first clamped on March 25 and spanned for 21 days, while the second phase of the curbs began on April 15 and stretched for 19 days till May 3. The third phase of the lockdown was in effect for 14 days and ended on May 17. The fourth phase ended on May 31.

The country had registered 512 coronavirus infection cases till March 24.

The nation-wide lockdown in containment zones will continue till June 30 in India but extensive relaxations in a phased manner from June 8 are listed in the Union home ministry's fresh guidelines on tackling the Covid-19 pandemic issued last week.

WHO Chief Scientist Soumya Swaminathan said the over 200,000 current coronavirus cases in India, a country of over 1.3 billion people, "look big but for a country of this size, it's still modest.”

She stressed that it is important for India to keep track of the growth rate, the doubling time of the virus and to make sure that that number doesn't get worse.

She said that India is a “heterogeneous and huge country” with very densely populated cities and much lower density in some rural areas and varying health systems in different states and these offer challenges to the control of Covid-19.

Swaminathan added that as the lockdown and restrictions are lifted, it must be ensured that all precautions are taken by people.

“We've been making this point repeatedly that really if you want behaviour change at a large level, people need to understand the rationale for asking them to do certain things (such as) wearing masks,” she said.

In many urban areas in India, it's impossible to maintain physical distancing, she said adding that it then becomes very important for people to wear appropriate face coverings when they are out, in office settings, in public transport and educational institutions.

“As some states are thinking about opening, every institution, organisation, industry and sector needs to think about what are the measures that need to be put in place before you can allow a functioning and it may never be back to normal.”

She said that in many professions working from home can be encouraged but in several jobs, people have to go to work and in such cases measures must be put in place that allow people to protect themselves and others.

“I think communication and behaviour change is a very large part of this whole exercise,” she added.

New Delhi, May 23: The nationwide lockdown will no longer help India in its fight against COVID-19, and in its place community-driven containment, isolation and quarantine strategies have to be brought into play, leading virologist Shahid Jameel said.

The recipient of Shanti Swarup Bhatnagar Prize for Science and Technology also stressed that testing should be carried out vigorously to identify coronavirus hotspots and isolate those areas.

"Our current testing rate at 1,744 tests per million population is one of the lowest in the world. We should deploy both antibody tests and confirmatory PCR tests. This will tell us about pockets of ongoing infection and past (recovered) infection. This will provide data to open up gradually and let economic activity resume," Jameel told PTI in an interview.

He stressed that testing has to be dynamic to continuously monitor red, orange and green zones and change these based on that data.

About community transmission of COVID-19 in India, Jameel said the country reached that stage long ago.

"We reached community transmission a long time ago. It's just that the health authorities are not admitting it. Even ICMR's own study of SARI (severe acute respiratory illness) showed that about 40 per cent of those who tested positive for SARS-CoV-2 did not have any history of overseas travel or contact to a known case. If this is not community transmission, then what is?" he posed.

Lockdown bought India time in its fight against coronavirus, but continuing it is unlikely to yield any further dividend, Jameel said.

"Instead, community-driven local lockdowns, isolations and quarantines have to come into play. Building trust is most important so that people follow rules. A public health problem cannot be dealt with as a law-and-order problem."

The nationwide lockdown, initially imposed from March 25 to April 14, has been extended thrice and will continue at least till May 31. The virus has claimed 3,720 lives and infected over 1.25 lakh people in the country so far.

Jameel has expertise in the fields of molecular biology, infectious diseases, and biotechnology. He is the CEO of Wellcome Trust/Department of Biotechnology's India Alliance and is best known for extensive research in Hepatitis E virus and HIV.

He said COVID-19 will eventually be controlled through herd immunity, which is acquired in two ways – when a sufficient fraction of the population gets infected and recovers, and with vaccination.

"It is estimated that for SARS-CoV-2 at least 60 per cent of the population would have to be infected and recovered, or vaccinated. This will happen over the course of the next few years," Jameel said.

Herd immunity is reached when the majority of a population becomes immune to an infectious disease, either because they have become infected and recovered, or through vaccination. When that happens, the disease is less likely to spread to people who aren't immune, because there just aren't enough infectious carriers.

"India has 1.38 billion people, a population density of about 400/sq km and a healthcare system ranked at 143 in the world. If we allow 60 per cent people to get infected quickly in the hopes of herd immunity, that would mean 830 million infections," Jameel said.

"If 15 per cent need hospitalization that means about 125 million isolation beds (we have 0.3 million). If five per cent need oxygen and ventilatory support, this amounts to about 42 million oxygen support and ICU beds; we have 0.1 million oxygen support beds and 34,000 ICU beds. This would overwhelm the healthcare system causing mayhem," he said.

Jameel said if the population level mortality is 0.5 per cent that would mean 40 lakh deaths. "Are we prepared to pay this price for herd immunity in the short term? Clearly not," he said.

He said it is unlikely that a vaccine would be available by the end of the year.

"Even then, we don't know yet how long it would give protection – weeks, months, one year, a few years? I don't think we will return to pre-coronavirus days for at least the next 3-5 years. This is also a chance to evaluate if we want to return to those unsustainable, environment-damaging ways. COVID-19 is a timely warning to reform our way of living," he said.

Jameel said it is hard to predict but plausible that COVID-19 would return in second or third wave.

"Later waves come when we don't understand the disease and become lax. A comparison to Spanish Flu is not entirely valid because in 1918 no one knew what caused it. No one had seen a virus till the mid-1930s as the electron microscope needed to view those was invented in 1931," he said.

"Today we know a lot more about the pathogen, its genetic makeup, how it transmits and how to prevent it. We need to be sensible and follow expert advice," he said.

If there is any scientific evidence linking deforestation, rapid urbanisation, climate change with pandemics like COVID-19, he said zoonotic viruses -- those that jump from animals to humans -- happen so when wild animal–human contacts increase.

"Deforestation destroys animal habitats bringing them closer to humans. When you cut forests, bats come to roost on trees closer to human habitations. Their viruses in secretions/stool get transmitted to domestic animals and on to humans. This happened clearly with Nipah virus outbreak in Malaysia in 1997-98 from fruit bats to pigs to humans," he said.

"COVID-19 possibly arose in wet animal markets due to dietary habits that bring all kinds of live and dead wild animals in close contact with humans," Jameel added.