"We found that influenza, viral, respiratory, and skin and subcutaneous infections were associated with increased long-term dementia risk" https://nature.com/articles/s43587-024-00682-4 Flu, herpes, respiratory tract may increase the risk of dementia years later https://www.washingtonpost.com/wellness/2024/10/18/dementia-risk-infections-flu-herpes-respiratory/