We already know that smoking cigarettes harms human respiratory and immune cells, and now we’ve shown that, on the flipside, smoke can also stress out invasive bacteria and make them more aggressive. Methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant superbug. MRSA bacteria exposed to cigarette smoke become even more resistant to killing by the immune system. The data suggest that cigarette smoke strengthens MRSA bacteria by altering their cell walls in such a way that they are better able to repel antimicrobial peptides and other charged particles.
— സ്രോതസ്സ് sciencedaily.com