07-31-2021, 01:39 PM
(07-31-2021, 01:31 PM)k.d. Wrote: Do you read your own links?How effective are vaccines against the delta variant?
Results from studies conducted so far show a range of effectiveness against the delta variant for each COVID-19 vaccine. Many of the studies have not been peer-reviewed at this time.
Previous data from Israel show the Pfizer-BioNTech vaccine is 64% effective against the delta variant, according to Israel’s Health Ministry.
Another study — more recent, but not yet peer-reviewed — shows the Pfizer vaccine is 88% effective against the delta variant and 96% effective against hospitalization from delta after two doses, according to a Public Health England analysis, Yale Medicine reported.
Moderna, in a study not yet peer-reviewed, said its vaccine is effective against the delta variant, Yale Medicine said.
The Oxford-AstraZeneca vaccine, which is not an mRNA vaccine, is 60% effective against the delta variant and 93% effective against hospitalization, according to Yale Medicine.
The Johnson & Johnson vaccine might not be as effective, however, as those who received an mRNA vaccine, according to a study posted by bioRxiv on Tuesday. The study has not yet been peer-reviewed or published.
The study says that the 13 million people who received the vaccine may need to receive a second dose, ideally the Pfizer or Moderna vaccine.