The World Health Organisation on 18 October said it was expecting additional information from India's Bharat Biotech regarding its COVID-19 jab Covaxin, asserting that it "cannot cut corners before recommending a vaccine for emergency use.

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The global health agency also emphasized that it must evaluate a vaccine thoroughly to make sure it is "safe and effective". Hyderabad-based Bharat Biotech, which has developed Covaxin, had submitted EOI (Expression of Interest) to the WHO on April 19 for the vaccine's Emergency Use Listing (EUL).

In a series of tweets, WHO said, "We are aware that many people are waiting for WHO's recommendation for Covaxin to be included in the COVID-19 Emergency Use Listing, but we cannot cut corners - before recommending a product for emergency use, we must evaluate it thoroughly to make sure it is safe and effective."

It also said that Bharat Biotech has been submitting data to WHO on a rolling basis and WHO experts have reviewed these data. "WHO is expecting one additional piece of information from the company today," it said. "When the information provided addresses with all questions raised, WHO and the Technical Advisory Group will complete the assessment and come to a final recommendation whether to grant EUL to the vaccine, it said.

WHO said the timeframe for its EUL procedure is dependent on how quickly a company, producing the vaccine, is able to provide the data required for WHO to evaluate the vaccine's quality, safety, efficacy and suitability for low- and middle-income countries. The WHO's tweet came a day after its chief scientist Soumya Swaminathan said that the agency's technical advisory group will meet on October 26 to consider the emergency use listing of India's Covaxin which is being used in the country's nationwide anti-COVID-19 vaccination programme.

"The technical advisory group will meet on Oct 26th to consider EUL for Covaxin. WHO has been working closely with Bharat Biotech to complete the dossier. Our goal is to have a broad portfolio of vaccines approved for emergency use & to expand access to populations everywhere," she said.

Bharat Biotech last month said it has submitted all data pertaining to Covaxin to the WHO for EUL and is awaiting feedback from the global health watchdog. "#COVAXIN clinical trial data was fully compiled & available in June 2021. All data was submitted for EUL application to WHO in early July. We have responded to any clarifications sought by #WHO and are awaiting further feedback," it said in a tweet.

"We are diligently working with the WHO to obtain EUL at the earliest," the company added. Covaxin is one of the two anti-COVID vaccines used by India in its vaccination drive across the country. Earlier this month, WHO had said in a tweet that Bharat Biotech has been submitting data to WHO on a rolling basis & submitted additional info,..on 27 September. WHO experts are currently reviewing this info & if it addresses all questions raised, the WHO assessment will be finalised next week.

Rolling data allows the WHO to start its review right away, as information continues to come in, to accelerate the overall review process. According to WHO, submissions for pre-qualification or listing under the EUL procedure are confidential and if a product submitted for assessment is found to meet the criteria for listing, WHO will publish the results widely.