(Reuters) – COVID-19 vaccine booster shots will be made widely available to Americans starting on Sept. 20, U.S. health officials said, citing data showing diminishing protection from the initial vaccinations as infections with the Delta variant rise.
In recent weeks several countries – including Israel, Germany and France – have decided to offer booster shots to older adults and people with weak immune systems. European Union officials said they do not yet see a need to give booster shots to the general population.
As of yet, there is no consensus among scientists and agencies that a third dose is necessary.
The World Health Organization (WHO) said on Aug. 18 that current data does not indicate a need for COVID-19 booster shots, adding that the most vulnerable people worldwide should be fully vaccinated before high-income countries deploy a top-up.
The following outlines the options countries and regions are considering on the issue:
COVID-19 vaccine booster shots will be made widely available from Sept. 20 to Americans who received their initial inoculation of two-dose COVID-19 vaccines made by Moderna and by Pfizer and BioNTech AG at least eight months earlier, U.S. health officials said on August 18.
The European Union’s drugs regulator said on Aug. 6 there’s still not enough data to recommend COVID-19 vaccine boosters.
Recent supply contracts with Pfizer/BioNTech and Moderna have included the potential for the bloc to buy booster shots.
Austria plans to start COVID-19 vaccine booster shots on Oct. 17, nine months after the first group of people to get the shots received their second dose.
Belgium has authorised the use of boosters – specifically mRNA shots – for immunosuppressed people. More data is needed before considering extra shots for the elderly and people living in nursing homes.
Britain has begun planning for a booster campaign starting later this year after top vaccine advisers said it might be necessary to give third shots to the elderly and most vulnerable from September. It said it would buy 60 million more doses of Pfizer/BioNTech’s vaccine ahead of the possible booster programme, bringing its total order of the shot to 100 million doses.
Brazilians should prepare for annual COVID-19 immunisations to reinforce vaccines, the head of public-sector laboratory Butantan said in May.
Cambodia started on Aug. 12 offering AstraZeneca booster shots to those who have received the inactivated virus vaccines developed by Sinopharm and Sinovac.
The Canadian province of Ontario will begin offering third COVID-19 vaccine doses to vulnerable people as early as this week, its chief medical officer said on Aug. 17.
Chile began on Aug. 11 administering booster shots to those already inoculated with Sinovac’s COVID-19 vaccine in a bid to lock in early success following one of the world’s fastest mass vaccination drives.
Some groups will probably need to get a third vaccine shot, Health Minister Adam Vojtech said on Aug. 17.
Dominican health authorities started distributing a voluntary third vaccine dose in early July.
Ecuador will administer a third dose of the coronavirus vaccine to people with weak immune systems and will carry out tests to determine if the rest of the inoculated population also needs a booster, Health Minister Ximena Garzon said on Aug. 18.
It has not made a decision on the recommendation of a third dose but is expected to do so in August.
President Emmanuel Macron said France was working on rolling out third COVID-19 vaccine doses to the elderly and vulnerable from September.
Germany will in September start to offer a booster shot to vulnerable people, such as the elderly and those with weak immune systems. The shots will be mRNA-vaccines from Pfizer/BioNTech and Moderna regardless of what was used previously.
Hungary has been offering an optional third dose of a COVID-19 vaccine from Aug. 1.
Indonesia started giving booster shots produced by Moderna to medical workers in July and is considering extra doses for wider use.
Israel in July started offering a third shot of the Pfizer/BioNTech vaccine to people aged over 60 and to those over 50 from Aug. 13. It continues to administer extra doses to health workers.
Health clinics in Moscow started offering booster shots in July to people vaccinated six months ago or more, making Russia one of the first countries to begin re-vaccination.
The Philippines is allotting 45.3 billion pesos ($899 million) for COVID-19 booster shots under its 2022 budget, an official said on Aug. 19, even as health authorities have yet to conclude there is a need for a third dose.
Singapore said in May it was making plans for booster shots later this year or early next year, if necessary.
South Korea said in June it plans to secure more mRNA vaccines to use as boosters next year for its entire population of 52 million.
Slovenia will most probably start recommending a third vaccine dose, the head of the National advisory committee on immunization, Bojana Beovic, told the Slovenian national broadcaster on Aug. 18.
The majority of Swedes will be offered a booster shot against COVID in 2022, while high risk groups could get a third shot this autumn, the health authority said on Aug. 3.
Switzerland has ordered 43 million doses of vaccines, including preparations for potential booster shots in 2022, should they be needed, the Health Ministry said.
The United Arab Emirates will start providing a booster shot to all fully vaccinated people. The shot will be available to people considered at high risk three months after their second vaccine dose, and six months for others.
In June, the UAE and Bahrain made the Pfizer vaccine available as a booster shot to those initially immunised with a vaccine developed by China’s Sinopharm.
Thailand plans to give booster shots of imported mRNA vaccine to its front-line workers – who were given imported Sinovac before the locally manufactured AstraZeneca vaccine was available in June.
Turkey is allowing people who were inoculated with Sinovac’s coronavirus vaccine to take an additional Pfizer dose, the health ministry said on Aug. 16.
Uruguay offers a Pfizer dose for those fully vaccinated wth Sinovac’s Coronavac. bit.ly/37SFw5P
The U.S. Food and Drug Administration (FDA) authorized a third dose of COVID-19 vaccines by Pfizer-BioNTech and Moderna on Aug. 13 for people with compromised immune systems.
Pfizer and BioNtech have submitted data to the FDA for COVID-19 vaccine booster authorization and plan to submit it as well to the European Medicines Agency (EMA) and other regulatory authorities in the coming weeks.
Pfizer and Moderna have raised the prices of their COVID-19 vaccines in their latest EU supply contracts, the Financial Times reported on Aug. 1.
Moderna had earlier struck deals with Spain’s Rovi and Switzerland’s Lonza at a Dutch plant that would boost 50-microgram dose production – half the level of its original shots – in Europe to up to 600 million doses annually, with the capacity due to come on line this year.
On Aug. 5, Moderna said that its COVID-19 shot was about 93% effective four to six months after the second dose, showing hardly any change from the 94% efficacy reported in its original clinical trial.
It expects, however, a COVID-19 booster to be necessary prior to the winter season.
AstraZeneca said it was looking into how long the vaccine’s protection lasts and if a booster dose would be needed.
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