“I don't necessarily think we have to deploy the booster until we kind of cross the threshold of someone who's vaccinated getting hospitalized with one of the variants, so I think it’s important to have this ready to go if necessary, but I don't think we've crossed the threshold where this is absolutely going to be needed because even in the face of the variants, our vaccines do very good at preventing severe disease hospitalization and death,” Dr. Amesh Adalja, Johns Hopkins Bloomberg School of Public Health said.
Now that the COVID-19 vaccine distribution is well underway, pharmaceutical companies are beginning to test booster shots.
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"Laboratory studies have shown that some vaccines that work well against earlier variants are less effective — though they still offer significant protection — against the variant known as B.1.351, which was first found in South Africa in December and has become the dominant one there."
Scientists want to inoculate every adult in one Austrian district, in a real-world test of how the Pfizer-BioNTech vaccine works against the variant first seen in South Africa.
www.nytimes.com