The World Health Organization does not have evidence that the monkeypox virus has mutated, a senior executive at the U.N. agency said on Monday, noting the infectious disease that has been endemic in west and central Africa has tended not to change.

Last week, a man in Massachusetts became the first person in the United States to be diagnosed with monkeypox since 2021. On May 22, U.S. health authorities announced they may have found the third documented case in a patient in South Florida.

The World Health Organization was due to hold an emergency meeting on May 20 to discuss the recent outbreak of monkeypox, a viral infection more common to west and central Africa, after more than 100 cases were confirmed or suspected in Europe.

The World Health Organization’s European chief said on May 20 he is concerned that the spread of monkeypox could accelerate in the region as people gather for parties and festivals over the summer months.

The world is no better prepared for a new pandemic than it was when coronavirus emerged in 2019 and may actually be in a worse place given the economic toll, according to a panel set up by the World Health Organization (WHO) to evaluate the global response.

The United States will share technologies used to make COVID-19 vaccines through the World Health Organization and is working to expand rapid testing and antiviral treatments for hard-to-reach populations, President Joe Biden said on May 12.

A single dose of human papillomavirus (HPV) vaccine is enough to protect against cervical cancer, a World Health Organization group of experts said.

The World Health Organization indicated WHO is tracking four Omicron subvariants: BA.1, BA.1.1, BA.2 and BA.3. BA.2 has a growth advantage over BA.1, the variant responsible for the recent Omicron surge.

The head of the World Health Organization (WHO) warned on Jan. 24 that it was dangerous to assume the Omicron variant would herald the end of COVID-19’s acutest phase, exhorting nations to stay focused to beat the pandemic.

The head of the World Health Organization (WHO) voiced concern on November 30 that some countries were introducing blanket measures against the Omicron coronavirus variant that may not be necessary and penalized African nations unfairly.