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The Vaccine Expert Advisory Group of the World Health Organization (WHO) recommended that patients in certain at-risk groups receive an additional third dose of vaccine against COVID-19, despite the fact that it had asked in August for a moratorium on these booster inoculations.

SIGHT: WHO reports Chinese Sinopharm and Sinovac COVID-19 vaccines require three doses

Mexican Alejandro Cravioto, president of the WHO Strategic Advisory Group of Experts (SAGE), made this announcement after the meeting held last week by this body, in which vaccination strategies against the SARS-CoV-2 and other diseases, such as malaria or polio.

The experts also recommended that the international community set a goal of vaccinating 70% of the world’s population against the coronavirus in mid-2022.

“It is a much higher percentage than we thought before, but given the development of the pandemic and the availability of new vaccines for younger age groups, it is a possible target”, stressed the president of SAGE.

About the third dose (or second in the case of the Johnson & Johnson single-dose vaccine), in principle it should be administered to people with a “Severely or moderately compromised immune system”Cravioto stressed at a press conference.

The Mexican expert clarified that this recommendation applies to all vaccines that the WHO has approved for emergency use: Pfizer-BioNTech, Moderna, AstraZeneca, Johnson & Johnson, Sinopharm y Sinovac. In the coming days, the one from the Indian laboratory Bharat will surely join, according to Cravioto.

The green light to a third dose, limited to certain groups, comes after the WHO asked in August not to administer booster doses until the end of September given the persistent inequality in the distribution of vaccines against the COVID-19, a term that was extended, weeks later, until January 2022.

Which countries already apply a third dose?


Since September 20, the supply of the third dose began, announced the president of the United States. Joe Biden. In several states of the country the application of the booster dose is a reality and there is even talk of a fourth dose.

United Arab Emirates

Local authorities reported on May 18 that citizens vaccinated with the two doses could access a third of the Chinese drug of Sinopharm, used in large percentage of Abu Dhabi.

Dominican Republic

Most Dominicans – vaccinated with Sinovac– They received authorization from President Luis Abinader (June 20) for those who request a third dose. He also said that the injection will be from another laboratory.


The application of a third dose was approved without any problem in the Middle Eastern country, since since July 1 there is a supply of a fourth that is injected three weeks after the “booster” puncture. The vaccines to choose are: Sinovac y BioNTech.


The mayor of Moscow, Sergei Sobyanin, summoned on July 1 all citizens immunized for six months to receive the third booster dose against the coronavirus. In addition, the authority mentioned that he had already received the puncture.


The authorities began to inject the booster dose from July 12 to its immunosuppressed population, and at the end of the month they approved the use of the drug BioNTech/Pfizer for those over 60 years with the aim of curbing the rate of infections.


On August 11, the government of Sebastián Piñera presented its calendar where it specified the dates for inoculation with the third dose – that same week – to the immunosuppressed and those over 60 years of age. The vaccines available are BioNTech or AstraZeneca but they could also use Sinovac, depending on each person.


Since August 16, the state of Bavaria has offered to apply a third dose to people who live in nursing homes, require third-party care or have a depressed immune system. The drugs, BioNTech / Pfizer or Moderna were the options.


Health authorities approved on August 16 the use of the drug developed by BioNTech / Pfizer for the application of a third dose for all who received AstraZeneca or Coronavac (Sinovac).

According to the criteria of

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10 countries already apply third dose of vaccine against COVID-19
10 countries already apply third dose of vaccine against COVID-19


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