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New Delhi, Jul 6: The Indian Academy of Sciences, a Bengaluru-based body of scientists, has said the Indian Council for Medical Research's (ICMR) target to launch a coronavirus vaccine by August 15 is "unfeasible" and "unrealistic".

The IASc said while there is an unquestioned urgent need, vaccine development for use in humans requires scientifically executed clinical trials in a phased manner.

While administrative approvals can be expedited, the "scientific processes of experimentation and data collection have a natural time span that cannot be hastened without compromising standards of scientific rigour", the IASc said in a statement.

In its statement, the IASc referred to the ICMR's letter which states that "it is envisaged to launch the vaccine for public health use latest by 15th August 2020 after completion of all clinical trials".

The ICMR and Bharat Biotech India Limited, a private pharmaceutical company, are jointly developing the vaccine against the novel coronavirus -- SARS-CoV-2.

The IASc welcomes the exciting development of a candidate vaccine and wishes that the vaccine is quickly made available for public use, the statement said.

"However, as a body of scientists including many who are engaged in vaccine development IASc strongly believes that the announced timeline is unfeasible. This timeline has raised unrealistic hope and expectations in the minds of our citizens," it said.

Aiming to launch an indigenous COVID-19 vaccine by August 15, the ICMR had written to select medical institutions and hospitals to fast-track clinical trial approvals for the vaccine candidate, COVAXIN.

Experts have also cautioned against rushing the process for developing a COVID-19 vaccine and stressed that it is not in accordance with the globally accepted norms to fast-track vaccine development for diseases of pandemic potential.

The IASc said trials for a vaccine involve evaluation of safety (Phase 1 trial), efficacy and side effects at different dose levels (Phase 2 trial), and confirmation of safety and efficacy in thousands of healthy people (Phase 3 trial) before its release for public use.

Clinical trials for a candidate vaccine require participation of healthy human volunteers. Therefore, many ethical and regulatory approvals need to be obtained prior to the initiation of the trials, it added.

The IASc said the immune responses usually take several weeks to develop and relevant data should not be collected earlier.

"Moreover, data collected in one phase must be adequately analysed before the next phase can be initiated. If the data of any phase are unacceptable then the clinical trial is required to be immediately aborted," it said.

For example, if the data collected from Phase 1 of the clinical trial show that the vaccine is not adequately safe, then Phase 2 cannot be initiated and the candidate vaccine must be discarded.

For these reasons, the Indian Academy of Sciences believes that the announced timeline is "unreasonable and without precedent", the statement said.

"The Academy strongly believes that any hasty solution that may compromise rigorous scientific processes and standards will likely have long-term adverse impacts of unforeseen magnitude on citizens of India," it said.

Mumbai, Jun 22: After downgrading India's outlook to negative from stable, Fitch Ratings on Monday revised the outlook on nine Indian banks to negative.

The outlook on the Long-Term Issuer Default Ratings (IDR) was revised to negative from stable due to the banks' high dependence on the Centre to re-capitalise them.

Accordingly, the IDR outlook of the Export-Import Bank of India, the State Bank of India, the Bank of Baroda, the Bank of Baroda (New Zealand), the Bank of India, the Canara Bank, the Punjab National Bank, ICICI Bank and Axis Bank Ltd have been downgraded to negative.

"At the same time, Fitch has affirmed IDBI Bank Limited's (IDBI) IDR while maintaining the outlook at negative," Fitch said in a statement.

The rating actions follow Fitch's revision of the outlook on the 'BBB-' rating on India to negative from stable on June 18, due to the impact of the escalating coronavirus pandemic on India's economy.

"The IDRs for all the above Indian banks are support-driven and anchored to their respective SRFs," the statement said.

"They are based on Fitch's assessment of high to moderate probability of extraordinary state support for these banks, which takes into account our assessment of the sovereign's ability and propensity to provide extraordinary support."

According to the statement, the negative outlook on India's sovereign rating reflects an increasing strain on the state's ability to provide extraordinary support, due to the sovereign's limited fiscal space and the significant deterioration in fiscal metrics due to challenges from the COVID-19 pandemic.

"The rating action does not affect the banks' Viability Rating (VR). EXIM does not have a VR as its role as a policy bank makes an assessment of its standalone credit profile less meaningful."

New Delhi, Feb 24: India and the US are committed to defend their people from radical islamic terrorism, resolved to significantly expand defence ties and are working on a "fantastic" trade deal, said US President Donald Trump on Monday while asserting that his country "loves" and is "loyal" to India.

Addressing a huge crowd at 'Namaste Trump' event at the Motera stadium here, the US president, accompanied by his wife Melania and Prime Minister Narendra Modi, talked about India's great tradition of embracing individual freedom, rule of law, dignity of every human being and where people worship side-by-side in harmony.

On his maiden visit, Trump, who was welcomed by Modi on his arrival here, said his country will remain a "loyal" friend of India and called the Prime Minister an "exceptional leader" who works day and night for the country.

"India and the US are committed to fight terrorists and their ideology; that is why my government is working with Pakistan to crack down on terror groups," Trump said in the presence of his family -- daughter Ivanka, son-in-law Jared Kushner-- and top brass of his administration.

"The US will always be faithful and loyal friend of India. Thank you for the spectacular welcome," he added.

He also announced that the two countries will firm up defence deals worth USD 3 billion on Tuesday and that the US will become India's premier defence partner.

"India and US have natural and enduring friendship," Trump said to a cheering crowd.

"We are quickly revitalising our alliances all around world," he said.

Trump said both countries are working on a "fantastic trade" deal, and observed that Modi is a "tough negotiator".

The US president also heaped praises on Modi, saying the Prime Minister is a "living proof" of what an Indian can achieve with hard work as Trump referred to his humble background as a tea-seller, who had a landslide win in the 2019 Lok Sabha polls.

On his part, Modi welcomed Trump to "world's largest democracy" and said a "new history" was being created.

Modi also praised Trump's leadership in containing terrorism.

Trump said as the world's largest economy, India gives hope to all humanity and has become an economic giant.

"There is a difference between a nation that rises by coercion and one that rises by setting its people free -- that is India. India and the US have natural and enduring friendship," he said.

He also touched on India's cultural diversity and riches as he highlighted the success of its blockbuster movies like DDLJ (Dilwale Dulhania Le Jayenge) and Sholay, and its sporting icons like Sachin Tedulkar and Virat Kohli.

He highlighted the boom in the US economy under his presidency and added that India will soon be home to the biggest middle class as it will eliminate extreme poverty in in next 10 years.

On his part, Modi said ties between India and the US are no longer just another partnership but have touched far greater heights.

Welcoming Trump, he said a "new history" is being created.

Visit of President Trump to India with his family shows strong ties between India and the US, said Modi.