(Redirected from Opportunistic infections) An opportunistic infection is an infection caused by pathogens (bacteria, viruses, fungi, or protozoa) that take advantage of an opportunity not normally available, such as a host with a weakened immune system, an altered microbiota (such as a disrupted gut flora), or breached integumentary barriers.
If someone is described as being 'rough around the edges' it means they are generally good but have a few faults on the outside. Rough around the edges has many meanings: Worn out; Not polished or refined; Not great but not bad either; ans Unkempt.
Yes, but look for sharp edges that may cause a puncture in your bag. Place a paper towel around the sharp edge, then vacuum and seal the bag. The paper towel will not change the taste or texture of the food item it is near.