anti-Covid vaccines.Health agencies stress however that the vast majority of post-vaccination fatalities were elderly, already vulnerable and often sick.Here's a review of the situation:Elderly, vulnerableNorway sparked alarm last week when it reported the deaths of 33 of some 20,000 retirement home residents who had received a first shot of the Pfizer/BioNTech vaccine.At least 13 of the fatalities were not only very elderly but also considered frail with serious ailments, the Norwegian Institute of Public Health said.While it noted that no analysis had yet been carried out on the causes of the deaths, it suggested that with the aged and vulnerable the normal side effects of vaccination such as fever or nausea could have contributed.Outside.