Yes apple cider vinegar can kill some parasites.
However apple cider vinegar may not kill all parasites and there's no science based evidence that shows for sure that all types of parasites are killed using apple cider vinegar.
Apple Cider Vinegar does have some disinfecting properties to it and can help kill some germs and viruses.
But if you really want to make sure you're killing parasites, germs and viruses such as the flu and cold virus or other diseases you need to use some regular commercially made disinfectant.
The commercially made disinfectant has been shown to kill the viruses, germs and bacteria as well as parasites.
So make sure to use regular disinfectant to ensure that the viruses and bacteria and germs are killed off as well as killing off diseases.