Similar approvals for China’s Sinopharm and Sinovac vaccines are expected in the coming days and weeks, the WHO said.

The World Health Organization has given the green light for the emergency use of Moderna’s COVID-19 vaccine.

The mRNA vaccine from the US manufacturer joins the vaccines of AstraZeneca, Pfizer-BioNTech and Johnson & Johnson to receive the list of emergency uses from the WHO.

Similar approvals for China’s Sinopharm and Sinovac vaccines are expected in the coming days and weeks, the WHO said.

The green light for the Moderna vaccine, announced on Friday evening, took several months because of the delays the WHO had to face in obtaining the manufacturer’s data.

Many countries without their own advanced regulatory and medical assessment offices rely on the WHO list to decide whether or not to use vaccines. UNICEF, the United Nations children’s agency, also uses the list to deploy vaccines in an emergency such as a pandemic.

The announcement, however, was not likely to have an immediate impact on Moderna’s vaccine supplies for developing countries. The company has supply agreements with many wealthy countries, which will have already received millions of doses.

In a statement released Friday, CEO St├ęphane Bancel said Moderna “is actively participating in discussions with multilateral organizations, such as COVAX, to help protect people around the world.” He was referring to a UN-backed program to ship COVID-19 vaccines to many low- and middle-income countries, as needed.

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