Which condition is NOT a risk factor for Meningitis?

Athlete's foot is not a risk factor for meningitis, primarily because it is a superficial skin infection caused by fungi, usually affecting the feet. This condition does not involve the central nervous system, nor does it introduce pathogens that could lead to infections like meningitis, which is characterized by inflammation of the protective membranes covering the brain and spinal cord.

Conversely, otitis media, neurosurgery, and sinusitis are conditions that can increase the risk of meningitis. Otitis media, an infection of the middle ear, can lead to bacteria or viruses spreading to adjacent structures. Neurosurgery can involve procedures in which the protective barriers of the brain are breached, providing a potential pathway for pathogens to enter. Sinusitis can also lead to infections that spread from the sinuses to the meninges, especially if bacterial organisms migrate along contiguous tissues or through the bloodstream.