Txertoak By stawrbeyo 1974 Meningitis 1974 Meningitis 1981 Hepatitis B 1984 Barizela 1991 Hepatitis A 1998 Lyme eta Rotabin 2006 Papiloma 2009 Gripe A 2012 Hepatitis E 2019 Ebola 2020 Covid-19