Primary Prophylaxis: Indications. 1  Prophylaxis should be administered to all HIV-infected patients with a CD4 count of <200 cells/ÂµL, a history of an AIDS-defining illness, or a history of oral thrush. PCP prophylaxis also is indicated for patients with CD4 counts of >200 cells/ÂµL in the presence of a CD4 percentage <14%.
Incubation Period. The incubation period depends on the causative agent. For example the incubation period of meningococcal meningitis is 2-10 days while the incubation for hemophilus meningitis is much shorter ranging from 2-4 days.However the range of incubation for most organisms causing meningitis is 2 days to 2 weeks. Viral meningitis-The most common but less serious form of meningitis. 2  Enteroviruses are the most common viral cause of meningitis in the US. 3  Coxsackie, herpes virus, arbovirus, measles and varicella are other common meningitis causing viruses.
Incubation Period. When a person becomes infected with the mumps virus, it begins to multiply within the nose, throat, and lymph glands in the neck. The virus can also enter the blood and spread to other parts of the body.After 16 to 18 days, on average, symptoms can appear. This period between transmission and the start of symptoms is the  incubation period for mumps .. In some cases, the incubation period can be as early as 12 days or as late as 25 days.Mumps Information.ncubation Period. When a person becomes infected with the mumps virus, it begins to multiply within the nose, throat, and lymph glands in the neck. The virus can also enter the blood and spread to other parts of the body.