Influenza can cause all kinds of serious and long term health problems. So can most STDs any given bacterial infection if they are left unobserved/untreated for

Influenza can cause all kinds of serious and long term health problems. So can most STDs any given bacterial infection if they are left unobserved/untreated for long enough. Most pathogens have some chance of causing serious problems, they are just usually rare, just like with COVID-19.