Looking at a couple of sites it states:
This is perhaps one of the most powerful herbs and is helpful for just about everything. It boasts powerful properties. it is an anticancer, anti- inflammatory, wound-healing, worm-expelling, and an overall body purifier. This is a very safe herb to consume regularly for maintaining health as well as to use medicinally. Pair with coconut oil and black pepper for improved absorption
It cites reference to https://www.ncbi.nlm.nih.gov/pubmed/26261481 but that does not talk about the effects on bacteria (or so I can tell). The other link http://www.drlise.net/attachments/tumeric.pdf seems broken
Also the uncited page http://naturalon.com/top-10-natural-cures-for-removing-internal-parasites/view-all/ says
Turmeric has a multitude of health benefits and one of them is for the treatment of parasitic infections
I have had an in-law also "encourage" us to put tumeric in our toddlers milk because it raises body temperature which can assist in killing off a cold, which I imagine is viral which I cannot see is possible (unless it boosts the immuse system). Found a site that says the same: http://www.naturalnews.com/048186_warming_spices_body_temperature_herbal_medicine.html
Is there any truth to having tumeric to assist in killing "bugs" (including raising body temperature), either bacterial or viral?