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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.

Thrissur, Mar 23: Kerala police on Monday has booked a Catholic priest for violating the Covid-19 advisory against conducting Holy Mass in which more than 100 people attended.

Fr. Pauly Padayatti, vicar of Nithya Sahaya Matha (Mother of Perpetual Help) church at Koodapuzha near Chalakudy in Thrissur district has been arrested by the police.

Despite the strict restrictions of the health department and the Kerala Catholic Bishops Council (KCBC) to temporality suspend church services involving laity in churches, the vicar conducted the Holy Mass on Monday.

The police have also registered case against the devotees for violating the guidelines by attending the service.

The top church leadership including Cardinal Mar George Alencherry repeatedly urged the laity not to go to churches for Holy Mass or other services.

The faithful have been asked to participate in the online streaming of Holy Mass by bishops and priests and pray from their homes.

Jehanabad, Jan 27: The police here carried out a raid at the ancestral house of anti-CAA activist Sharjeel Imam, who has been slapped with a sedition case in the national capital for alleged inflammatory speeches he gave at Shaheen Bagh and the Jamia Milia Islamia, a senior official said on Monday.

According to Superintendent of Police, Jehanabad, Manish Kumar, Imams house in Kako police station area was raided late on Sunday night following "help sought by central agencies" which are investigating the cases lodged against the JNU research scholar.

Imam was not found at his house but two of his relatives and their driver were detained for interrogation and let off thereafter, the SP said.

A graduate in computer science from IIT-Mumbai, Sharjeel Imam had shifted to Delhi for pursuing research at the Centre for Historical Studies, JNU.

He was slapped with a sedition case after his alleged speeches went viral on the social media wherein he was heard speaking about Assam's possible secession from the country in the wake of the Citienship (Amendment) Act (CAA).

Earlier, he had been booked on similar charges at a police station in Aligarh for a speech he delivered on the AMU campus.

Besides, a case under the stringent anti-terror law UAPA has been registered against him at Assam.

Imams late father Akbar Imam was a local JD(U) leader who had unsuccessfully contested an assembly election in his lifetime.

Reacting to the developments, his distraught mother Afshan Rahim told the media, "My son is innocent. He is a bright young man and not a thief or a pickpocket. I swear in the name of God that I do not know about his whereabouts. But I can guarantee that upon learning about the cases, he will appear before the investigating agencies and fully cooperate in the probe."

She said that it has been a long time since she met her son though she had a telephonic conversation with him a few weeks ago.

"He was obviously disturbed by the CAA and fears of the National Register of Citiznes (NRC) about being implemented across the country which, he said, would affect not just Muslims but all poor people," she said.

In fact, after 15 days of Shaheen Bagh protest, he had asked the agitators there to withdraw and watch the situation for a month, and then decide on the further course of action, she said. "But they refused to relent. He was calling for a 'chakkajam' (road blockade). He is just a kid and not capable of instigating people for secession," she added.