English Opportunistic infection Cited by user Immcarle140 on 09 Mar 2021 An opportunistic infection is an infection caused by pathogens (bacteria, fungi, parasites or viruses) that take advantage of an opportunity not normally available.
English Meningitis Cited by user DrKay on 12 Aug 2018 Meningitis is an acute inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges.