pertussis - hírek
Whooping cough is surging again - infants face the highest risk, experts warn
How well are countries in Europe dealing with health issues? New report shows progress is stagnating
A szamárköhögést okozó több baktériumtörzs is rezisztens az élvonalbeli antibiotikumokra
Whooping cough cases surge in US, Europe post-COVID pandemic
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