Pertussis Outbreak 2025 Lok. Pertussis, also known as whooping cough, is a highly contagious respiratory infection caused by the bacterium bordetella pertussis. Since january 2025, italy experiences a pertussis outbreak, primarily affecting neonates and unvaccinated infants at high risk of severe complications and mortality;
This is the largest spike of cases since. An official from the department of health (doh) on tuesday assured there is nothing to worry about the declaration of pertussis outbreaks of some lgus.