3 ms·
Following your logic I should have had residual immunity to keep most of the variants in check. The first time I had the flu in college it was brutal and I was
by sjg007 5y ago
Following your logic I should have had residual immunity to keep most of the variants in check. The first time I had the flu in college it was brutal and I was out of commission. The second time diagosed I got tamiflu after the flu test and it was mild. I also knew I was sick. Anything in between was unnoticed and I have had a flu shot since they first came on the market.
- NoPie 5y agoNot necessarily. The immunity fades with time, so it is possible that you could be infected again. The residual immunity might be strong enough to prevent symptoms however. Each such exposure can boost your immunity. Nevertheless, influenza virus has many mutations and sometimes can cause breakthrough disease even in vaccinated.