Laboratory studies have shown the following results regarding the spread of viruses:
- influenza A/H3N2 — 91.3%,
- influenza B — 3.8%,
- COVID-19 — 4.8%.
In addition, the activity of other acute respiratory viral infections has been registered: rhinovirus — 28.9%, adenovirus — 24.4%, parainfluenza I–IV — 20%, RSV — 6.7%, and other viruses — 20%.