Reaction

Sars-Cov-2 Antibody Test Negative reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 475 reports · 5 co-occurring drugs

As of the last recalculation, Sars-Cov-2 Antibody Test Negative appears in 475 FAERS reports alongside 5 co-occurring drug terms. The strongest observed disproportionality signal is OCRELIZUMAB (PRR 397.9).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.
DrugCo-reportsPRRROR
Ocrelizumab258397.9399.5
Dalfampridine3220.920.9
Remdesivir620.020.0
Obinutuzumab616.216.2
Siponimod314.814.8

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.