Emerging data suggest that Delta could spread more readily than other coronavirus variants among people vaccinated against COVID-19. But key questions remain.
COVID-19 vaccines are effective against serious illness. But researchers are increasingly concerned about ‘breakthrough’ infections driven by the Delta variant of SARS-CoV-2.Credit: Jeff J Mitchell/AFP/Getty
When early field data showed that vaccinating people cuts transmission of the SARS-CoV-2 virus, researchers were cautiously optimistic. But they warned that many of those studies, although promising, took place before the fast-spreading Delta variant proliferated worldwide. Now, reports from various countries seem to confirm what scientists feared after the variant tore through India with alarming speed in April and May: Delta is more likely than other variants to spread through vaccinated people.
A child of the peace and antiWar movements, a Truther with self-diagnosed Opposition Defiance Disorder, formerly politically liberal tho now politically marooned, and Post-Doomer, on any issue, I trend to the conspiracy side, sort through the absurd, fantastical and insane, until I find firm ground usually located just the other side of the censorship firewall of propaganda and orthodoxy, dogma, and other either / or thinking.