Haemophilus influenzae type b (Hib) is an obligate human pathogen and an important cause of invasive bacterial infections in both children and adults, with the highest incidence among young children.
For 2019, 24 EU/EEA countries reported 1 049 confirmed cases of leptospirosis, the highest number in the period from 2015–2019, possibly because of environmental conditions favourable to hosts, and/or increase of activities at risk for infection.
Yellow fever (YF) is a mosquito-borne infection, distributed in west, central and east Africa and in South America. The disease can cause a wide spectrum of symptoms, from mild to fatal. In severe cases there may be spontaneous haemorrhage. Mortality of these clinical cases can be as high as 80%, on a par with Ebola, Marburg and other haemorrhagic viral infections.