Mpox Cases Rise in Portugal: Transmission Intensification Concerns

Here’s a breakdown of the provided text, summarizing the key data about the mpox (monkeypox) situation in Portugal and Europe:

Key Findings:

* New Variant: Portugal has identified its frist case of the clade Ib variant of mpox, considered the most worrying.This case occurred in October in an individual with no recent travel history.
* Geographic Concentration: the Lisbon Metropolitan Area has been the primary location for mpox cases in Portugal, accounting for 75% of the 1202 national infections reported up to February 2025.
* Severity: Despite the concern around the new variant, only two deaths have been recorded in Portugal, both in immunocompromised patients. Experts (Margarida Tavares) beleive the clade Ib is unlikely to cause more severe illness.
* Transmission Pattern Shift: The ECDC notes that cases of clade Ib with no travel history suggest a change in transmission patterns, potentially occurring within sexual networks of men who have sex with men. Previously, most cases were linked to travel or spread within families.
* ECDC Risk Assessment: The ECDC assesses the risk of infection with clade Ib as “moderate” for men who have sex with men and “low” for the general population.
* Vaccine Effectiveness: The available vaccine remains protective against severe disease. Effectiveness is 82% with two doses, but drops to 20% if administered after exposure.
* Vaccination Importance: Experts emphasize the importance of vaccination, particularly for men who have sex with men, as a preventative measure.
* Potential Replacement: Margarida Tavares predicts that clade Ib may eventually replace the currently dominant variant.

In essence, the article reports on the emergence of a potentially more transmissible variant of mpox in Portugal and Europe, but emphasizes that current vaccines are still effective and the risk of severe illness doesn’t appear to be increasing.