Covid: Is there a limit to how much worse variants can get? - BBC News

https://www.bbc.com/news/health-57431420

BNT162b2-elicited neutralization of B.1.617 and other SARS-CoV-2 variants | Nature

https://www.nature.com/articles/s41586-021-03693-y

Immunogenicity of Ad26.COV2.S vaccine against SARS-CoV-2 variants in humans | Nature

https://www.nature.com/articles/s41586-021-03681-2


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The four most urgent questions about long COVID

https://www.nature.com/articles/d41586-021-01511-z

Vacuna urgencias ingresos.

https://www.cdc.gov/mmwr/volumes/70/wr/mm7023e2.htm?s_cid=mm7023e2_w&s=03 

Therapeutic versus prophylactic anticoagulation for patients admitted to hospital with COVID-19 and elevated D-dimer concentration (ACTION): an open-label, multicentre, randomised, controlled trial - The Lancet

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)01203-4/fulltext

When You’ve Been Fully Vaccinated | CDC

https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated.html


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