The emergence of the Delta variant, which is spreading rapidly and is even being found among the fully vaccinated, has accelerated the debate about a third jab
THE RACE TO vaccinate the world is not a fair one. Even as some countries struggle to get first doses out into the arms of their most vulnerable, countries with advanced vaccination campaigns are starting to consider giving “booster” shots. Which countries are doing this, and why?A daily email with the best of our journalismVaccines work by exposing the body to a harmless form of a pathogen, so that the immune system can create defences against the disease.
Israel began giving extra shots of the Pfizer/BioNTech jab to over-60s this week and intends to have 1m vaccinated by the end of August. France has decided to offer boosters from September to 1.7m people in care homes, those over 75 and those who have health conditions that make them vulnerable. Germany has similar criteria. These groups are most vulnerable to infection with covid-19, and some governments seem to have decided that it is worth offering additional protection.
The emergence of the Delta variant, which is spreading rapidly and is even being found among the fully vaccinated, has accelerated the debate. Although drug firms are researching vaccines that may fight individual variants, something that might be offered as a booster, these have not yet proven necessary. Current vaccines are protecting well against severe disease and hospitalisation of patients with Alpha and Delta, even though they were designed to deal with the original strain.
Selling boosters, though, is great business. Pfizer and Moderna have both announced that third doses of their vaccines would be needed and are lobbying governments for authorisation to do so. They have also recently increased the prices of their products. On the back of projected vaccine sales Pfizer raised its 2021 revenue forecast at the end of July, to $33.5bn.
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