It depends on your immune system. What can kill one person, may not effect another.
Vinegar and chilli DO NOT kill parasites. They can live in acidic stomachs of fish, dolphins, etc. If it has been frozen, it is OK to eat as long as it was frozen only a few hours after being caught.
Although you're unlikely to end up with a living fish parasite in your body, having them pass through your body can still make you ill and is just something to think of when choosing what to eat in a far away country.