How Long Are Viral Infections Contagious? Contagiousness refers to the ability of a virus to be transmitted from one person (or host) to another. Viral infections are contagious for varying periods of time depending on the virus. An incubation period refers to the time between exposure to a vi...
The CSF is a clear, watery fluid that is present around the brain and spinal cord (the central nervous system or CNS). The fluid is responsible for various functions, such as protecting the CNS againstshockinjuries, maintaining optimum pressure in the CNS, providing nutrients to the brain and...