Surveillance for SARS-CoV-2 in Norway Rats (Rattus norvegicus) from Southern Ontario

Figure 1

Rat collection counts and human COVID-19 cases per 100,000 people by date from January 1, 2020 to June 22, 2021 in (a) Ontario, (b) Windsor, and (c) Hamilton. Collection dates of seropositive rats (PRNT70) are indicated by black diamonds.

(a)

(b)

(c)