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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.

United Nations, Jul 10: India is a "good example" as solar auctions have seen popularity amidst the height of the COVID-19 pandemic, UN chief Antonio Guterres said on Thursday, underlining that renewable energy is the only energy source expected to grow in 2020 and offers more jobs than the fossil fuel industry.

In his remarks to the International Energy Agency "Clean Energy Transition Summit'', UN Secretary-General Guterres urged the international community to commit to further usage of coal and to end all external financing of coal in the developing world.

"Coal has no place in COVID-19 recovery plans. Nations must commit to net-zero emissions by 2050 and submit more ambitious national climate plans before COP-26 next year," he said.

"The seeds of change are there. Renewable energy is the only energy source expected to grow in 2020. Solar auctions have seen popularity amidst the height of the pandemic. India serves as a good example. Renewables offer three times more jobs than the fossil fuel industry," Mr Guterres said.

Last month, Adani Green Energy said it has bagged the first of its kind manufacturing-linked solar contract worth Rs 45,000 crore from the Solar Energy Corporation of India (SECI) to develop 8 GW electricity generation capacity and 2 GW equipment manufacturing facility in the country.

Mr Guterres said he has asked all countries to consider six climate positive actions as they rescue, rebuild and reset their economies.

"We need to make our societies more resilient. We need green jobs and sustainable growth," he said, adding that bailout support to sectors such as industry, aviation and shipping should be conditioned on alignment with the goals of the Paris Agreement.

Countries also need to stop wasting money on fossil fuel subsidies and place a price on carbon, he said, noting that countries need to consider climate risk in their decision making.

"Every financial decision must take account of environmental and social impacts. Overall, we need to work together," he said.

New Delhi, Apr 20: With 1,553 more COVID-19 cases, India's total number of coronavirus cases has reached 17,265, the Ministry of Health and Family Welfare said on Monday.

Out of the total cases, 14,175 cases are active, while 2,547 people have been cured/discharged/migrated and 543 deaths have been reported, as per the ministry.

As many as 36 deaths have been reported in the last 24 hours.

According to the Ministry of Health and Family Welfare, Maharashtra continues to be the worst-affected state with a total of 4,203 cases. While 507 patients have recovered, 223 deaths have been reported.

Delhi comes next with 2,003 cases, out of which 72 patients have recovered while 45 patients have died.

Rajasthan has confirmed 1,478 cases, out of which 183 people have recovered while 14 patients are dead.

Tamil Nadu has reported 1,477 cases, out of which 411 have recovered and 15 have succumbed to the virus.

Madhya Pradesh has reported 1,407 cases, including 127 patients recovered and 70 patients dead. On the other hand, Uttar Pradesh has 1,084 COVID-19 positive cases.

In Kerala, which reported the country's first COVID-19 case, 402 people have been detected positive for coronavirus.