Global infectious disease threats highlight importance of ongoing monitoring

Posted 10 hours ago by Mui Nguyen Less than a minute to read

We have published our latest report on Overseas infectious diseases of priority concern.

Here are the key findings:

Poliovirus cases remained high in African countries in 2025, particularly Nigeria (73 cases),
Ethiopia (40 cases), and Chad (55 cases).
Mpox cases at the global level increased between 2023 (9,666 cases or 1.2 cases per million
people) and 2025 (53,562 cases, or 6.6 cases per million people. A surge of cases, including the
emergence of a new strain, led the WHO to declare Mpox a PHEIC again in August 2024 and to
maintain it as a PHEIC as of 2025.
Measles cases increased steadily between 2022 (25.7 cases per million people) and 2024 (82.8
cases per million people), and vaccination rates remained lower than optimal.
Non-seasonal influenza was reported in 3 countries in 2025, decreased from 10 countries in 2024.