WHO Warns Monkeypox Could Accelerate as Cases Spread to Switzerland, Israel

This 2003 electron microscope image shows mature, oval-shaped monkeypox virions (R) and spherical immature virions (L) obtained from a sample of human skin associated with the 2003 prairie dog outbreak. Cynthia S. Goldsmith, Russell Regner/CDC via AP

Israeli and Swiss officials on May 22 confirmed monkeypox cases as the World Health Organization has warned that the virus could accelerate during the summer months.

Both nations said in their respective statements that they identified at least one infected person who had recently traveled. Israel said it was investigating other suspected monkeypox cases.