"Of those cases, 84% are Seychellois and the rest are foreigners, Daniel Lucey, Clinical Professor of Medicine at Dartmouth Geisel School of Medicine, said in a blog post. Just under two thirds of those are either unvaccinated or have only had one dose, and the rest have had two doses, he said.
"While data on genetic sequencing are not yet available for infections in April, the B.1.351 variant, first identified in South Africa late last year, was found in the Seychelles in February, he said. AstraZeneca’s vaccine appeared to be less effective against that variant in a study, and South Africa halted plans to use it.
A comparison between Sinopharm, Covishield, and unvaccinated infected persons” could be done using genetic sequencing and data on the severity of their infections, Lucey said. “Given the widespread international use of these two vaccines there are global implications to what is happening now in the Seychelles.”