The Delta variant doubles the risk of hospitalization — but the vaccines still work

The good news? Vaccines always dramatically reduce the risk of being hospitalized with the Delta variant. The Scottish study found that the Pfizer / BioNTech vaccine provided 79% protection, two weeks after the second dose, while the Oxford / AstraZeneca vaccine offered 60% protection. This lower rate may be due to the fact that it takes longer to develop immunity with the Oxford / AstraZeneca vaccine, the researchers say.

However, research released shortly after by Public Health England it was even more promising. He found that the Pfizer / BioNTech vaccine provides 96% protection from hospitalization after two doses, while Oxford / AstraZeneca is 92% effective in preventing hospitalization after both doses. The conclusion? There is even more evidence of the importance of ensuring that as many people as possible are vaccinated, and that they receive both shots.

Infectious: The Delta variant is 64% more transmissible than the Alpha variant indoors, according to Public Health England.

These data, combined with hospital admission data, are the reason why the UK has delayed plans to lift most of the remaining covid-19 restrictions by a month. The hope is that those extra weeks will provide enough time to push the number of fully vaccinated adults. Although more than 70% of the UK adult population had one dose, just over half had both.

The great fear: One concern, since the beginning of vaccination programs, has been that current vaccines will become much less effective as the virus evolves and adapts, a scenario known as “cow escape.” As it is, it doesn’t seem to be happening. But in the end we will need new vaccines designed to address the variants more precisely.

Source link

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button