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New Delhi, May 26: As India ranked 10th in the global infection list, overtaking Iran, which was an early hotspot of coronavirus, India's top medical body has said the human trials of COVID-19 vaccine may begin at least in six months.

Dr. Rajni Kant, Director Regional Medical Research Centre and Head at the Indian Council of Medical Research (ICMR) said, "The virus strain isolated at the National Institute of Virology (NIV) laboratory in Pune will be used to develop the vaccine, and this strain has been successfully transferred to the Bharat Biotech International Ltd. (BBIL). It is expected that the human trials of the vaccine will begin in at least six months."

Queried on the focus areas as India inches closer to 1.4 lakh COVID-19 cases, Kant said we should not get anxious about the rapid increase in numbers, especially in the past week, which saw 5,000 Covid-19 cases daily, instead focus on protecting the most vulnerable group.

"We should not fear from increasing Covid-19 cases. The elderly and people with comorbidities need protection. This is the highly vulnerable group, and we need to deploy resources and develop strategies to keep the mortality rate as low as possible in this group," said Kant.

Initially, it was assumed that the country would require thousands of ventilators, but last week, the health ministry said only 0.45 per cent of COVID-19 cases need ventilator support.

Kant insisted the focus should be on five per cent to 10 per cent serious patients. "We are testing more than one lakh daily and our case fatality rate is already one of the lowest in the world. In absence of vaccine, people should follow social distancing guidelines," he added

On the significance of the recovery rate, Kant said the increasing recovery rate of the COVID-19 patients, which is at 41 per cent, is a bright spot in India's fight against deadly viral infection.

Queried on large scale COVID-19 cases in Mumbai, Delhi and Ahmedabad, Kant said the population density in these regions is very high, which proves to be the just right environment for the viral infection.

He insisted on developing robust cluster management strategies in the hard-hit coronavirus spots, and the movement of people should be curtailed in these areas.

"Currently, a lot of people are moving around easily and avoiding social distancing norms. The first phase of the lockdown was very effective, but now things have changed," added Kant.

London, May 11: Fugitive diamond merchant Nirav Modi's five-day extradition trial over the nearly USD2 billion Punjab National Bank (PNB) fraud and money laundering case is set to begin in London's Westminster Magistrates' Court today.

The London High Court rejected Nirav Modi's bail plea in Punjab National Bank (PNB) bank fraud case for the fifth time in early March.

Modi, the prime accused in the PNB fraud case, is currently lodged at Wandsworth prison in south-west London and is wanted for his alleged role in the Rs 13,570 crore loss caused to the Punjab National Bank (PNB) along with his uncle, Mehul Choksi.

Modi, 48, was arrested in March last year by Scotland Yard in connection with the case.

Modi was remanded in custody till February 27, 2020, after he appeared before a UK court on Thursday via video link from his London prison.

The latest bail hearing followed further assurances by Modi, including an increase in the amount of security he had offered as a guarantee as well as stricter bail conditions.

On his last bail application, Modi offered USD 4 million as a security guarantee in return for bail, an offer that was rejected by judges who ruled that there was a real risk that Modi would flee the UK to a country which has no extradition treaty with India.

At the same hearing, the judge ruled that there was "strong evidence" that Modi had engaged in "witness intimidation" and destroying evidence.

Given the seriousness of such allegations, it was all but certain that the latest bail application would be rejected.

Modi's lawyers had contended that their client was being held in difficult conditions at Wandsworth prison and had also claimed that his mental health was deteriorating as a result of his incarceration.

However, ruling at the High Court today, Justice Ian Dove said there was a "clear need for this application to be refused in the present circumstances."

It comes just days after the second sale of assets belonging to Modi valued at millions of dollars.

The items include a luxury Rolls Royce car, a Patek Philippe watch and a painting by the renowned Indian artist Amrita Sher-Gil valued at USD 2.5 million but expected to fetch considerably more.

Meanwhile, Nirav's brother Neeshal Modi, who is also one of the co-conspirators in the PNB scam, has written to Enforcement Directorate, distancing himself from his brother's actions and said that he had no knowledge of it.

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.