Young People Currently Leading the Covid Cases in Spain Young People Currently Leading the Covid Cases in Spain Young people are currently leading the cases of Covid-19 in Spain with the age group between 15 and 19 years old being the most contagious. THE data for all autonomous communities currently shows that more young people are infected and that they are also the most contagious. Epidemiologist, Joan Caylà, highlights that “the virus passes to the parents of these young people and to their grandparents.” -- ADVERTISEMENT -- Young people, however, are not the majority admitted to hospitals. The data from Carlos III Health Institute (ISCIII) clearly shows that although the 15 to 29 age group have the most registered infections the data for hospitalisation increases with age.