WHO Experts Back COVID Booster Dose for Immunocompromised

3rd doses of Chinese Sinovac & Sinopharm inactivated virus vaccine should be given to those over 60, say WHO experts

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Experts from the World Health Organization (WHO) have recommended that COVID-19 booster shots should be offered to moderately and severely immunocompromised people.

After four days of talks last week, the WHO's Strategic Advisory Group of Experts on Immunization (SAGE) on Monday, 11 October, recommended that such people should receive a third dose of a vaccine on the WHO Emergency Use Listing (UEL) as they are "less likely to respond adequately to vaccination following a standard primary vaccine series and are at high risk of severe COVID-19 disease", reports Xinhua news agency.

'Maximise 2-Dose Coverage, Then Administer 3rd Dose, Starting From Oldest Age Groups'

Since the end of September, several COVID-19 vaccines have been certified by the WHO UEL, including Pfizer-BioNTech, Janssen, Moderna, Sinopharm, Sinovac, AstraZeneca, and Covishield.

SAGE said it had also reviewed Covaxin, made by India's Bharat Biotech, and a policy recommendation will be issued once the vaccine is approved by the WHO UEL.

Third doses of the Chinese Sinovac and Sinopharm inactivated virus vaccines should be offered to those over 60, said WHO experts.

Meanwhile, the use of a heterologous (or live virus) jab for the additional dose may also be considered based on vaccine supply and access considerations.

"When implementing this recommendation, countries should initially aim at maximising two-dose coverage in that population, and thereafter administer the third dose, starting in the oldest age groups," SAGE said.

The WHO had earlier called for a global moratorium on COVID-19 booster doses, aiming for a more equitable distribution of vaccines globally to enable every country to vaccinate at least 40 percent of its population.

Last week, the organisation announced an initiative to vaccinate 40 percent of the population of every country against COVID-19 by the end of 2021, and 70 percent by mid-2022.

This drive would prioritise vaccine delivery to low-income countries, particularly those in Africa.

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Topics:  WHO   coronavirus   WHO COVID-19 

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