Vaccines typically give a stronger antibody response than infection—possibly better for short-term protection—and infection triggers a response that evolves over time, which might be better for long-term protection
, given the risks of serious illness or death from infection.whether people who have had Covid-19 before need a full course of vaccination, and whether documented prior infection should count as proof of immunityYara Nardi/ReutersJerome Delay/AP
Several peer-reviewed studies conducted in the early part of the pandemic, before widespread vaccination, found that people infected during the first waves were around 80% less likely to test positive during the next surgeA recent Israeli study found that people who had been vaccinated with two shots of the vaccine developed by Pfizer Inc. and BioNTech SE wereOded Balilty/AP, Previous: Stanislav Kozliuk/Reuters, tracked confirmed infections between June and August this year for people who had been either vaccinated or infected in January or February.
both fully vaccinated and those previously infected with the virus have a low risk of subsequent infection for at least six monthsto make the case that immunity from infection is superior to that from vaccination.
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