Diseases, Conditions, Syndromes

Protective immunity to seasonal coronaviruses may be short-lasting

The duration of protective immunity against SARS-CoV-2 may be short-lived, suggests a study investigating immunity to four other, similar coronaviruses. The findings from a case study of ten healthy subjects monitored over ...

Diseases, Conditions, Syndromes

Two-thirds of Omicron cases in England reinfections: study

Nearly two-thirds of people in England who tested positive for COVID-19 in January previously had the virus or suspected they had it, a large long-running infection survey revealed Wednesday.

Diseases, Conditions, Syndromes

Prior SARS-CoV-2 infection less protective against Omicron variant

(HealthDay)—Previous severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is about 90 percent effective for preventing reinfection with the alpha, beta, and delta variants but offers lower protection against ...

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