Side Effects From COVID-19 Vaccines Are Difficult to Distinguish From Early Symptoms of Virus: Study

A nurse fills up syringes for patients as they receive their COVID-19 booster vaccination during a Pfizer-BioNTech vaccination clinic in Southfield, Mich., on Sept. 29, 2021. Emily Elconin/Reuters

Post-COVID-19 vaccination side effects cannot be clearly differentiated from the early symptoms of the virus, according to new findings led by researchers at King’s College London and published last week in the eClinical Medicine journal.

Researchers who conducted the study, titled “Disentangling post-vaccination symptoms from early COVID-19“ noted that ”some individuals experience systemic symptoms post-vaccination, which overlap with COVID-19 symptoms.”