New Delhi: The World Health Organisation on Thursday cleared the Pfizer-BioNTech COVID-19 vaccine for ’emergency use’. Now, poorer countries may soon get access to the Pfizer vaccine which already available in Europe and North America.Also Read - Nurse in California Tests Positive For Coronavirus Week After Receiving Pfizer Vaccine: Report

The WHO said late on Thursday that the decision to issue its first emergency use validation for a COVID-19 vaccine “opens the door for countries to expedite their own regulatory approval processes to import and administer the vaccine.” Also Read - European Union Grants Conditional Approval to Pfizer-BioNTech Covid Vaccine For Emergency Use

The UN health agency said its review found the Pfizer-BioNTech vaccine, which has already received clearance in the United States, Britain, the European Union and a dozen other countries, “met the must-have criteria for safety and efficacy set out by WHO.” Also Read - Watch: US Nurse Faints Shortly After Getting Pfizer-BioNTech’s Covid-19 Vaccine Shot

Every country that has a drug regulatory agency will have to issue its own approval for any COVID-19 vaccine, but countries with weak systems usually rely on WHO to vet the shots.

The BioNTech-Pfizer vaccine needs to be stored at ultra-frozen temperatures, a big hurdle for developing countries where the required freezers and reliable electricity supply may not be available.

“This requirement makes the vaccine more challenging to deploy in settings where ultra-cold chain equipment may not be available or reliably accessible,” the WHO said.

The WHO added that it was “working to support countries in assessing their delivery plans and preparing for use where possible”.

(With inputs from AP)