@BiologistBunk @Mariejobin1 Example 1: Negative for C-19 antibody, RT-PCR, and antigens as well as for routine pathogen tests.
https://t.co/q9O2v5JpZ5
Example 2: All biopsy-confirmed cases tested negative for SARS-CoV-2 using E-gene-specific sequences.
https://t.co/F95YzqPqqT