At least 10 to 30 percent of individuals infected by SARS-CoV-2 have experienced post-COVID syndrome (also known as long-hauler syndrome, or long COVID). In the United States, 18 to 19 percent (nearly 1 in 5) of adults who reported ever having had COVID-19 currently have symptoms of long COVID, defined as symptoms lasting three or more months that were not present prior to having COVID-19.
“Post-COVID-vaccine syndrome,” a newly coined term by Dr. Paul Marik, is defined as the temporal correlation between receiving a COVID-19 vaccine and the beginning or worsening of clinical manifestations which are sufficient to diagnose a COVID-19 vaccine-induced injury when symptoms cannot be explained by other concurrent causes.
