Diagnostic specimens assigned to UN3373 include Monkeypox virus samples.
Mainly found in parts of central or west Africa, the likelihood of catching monkeypox in non-endemic countries is extremely low. However, due to increased infections, the UK Government has published guidelines on testing for monkeypox and transporting suspected monkeypox samples.
As per these guidelines, suspected cases of monkeypox must be transported in Category B (UN3373) packaging. Confirmed cases, however, must be transported in Category A packaging.