noun phaseÂ·out \ËfÄz-ËauÌt\. : the act of stopping something gradually over a period of time in a planned series of steps or phases.
C. Incubation period: Usually 3 weeks, ranges from 10 days to 3 months for primary symptoms. D. Period of communicability: Moist mucocutaneous lesions of primary and secondary syphilis are infectious. However, it is difficult to differentiate between the infectious stage and the noninfectious early latent stage.
For typhoid fever, the incubation period can be between 3 and 60 days, although most infections occur 7-14 days after contamination. The incubation period for typhoid fever is highly variable and depends on inoculum size, host susceptibility, and the bacterial strain.he symptoms can be mild to severe and may last between 5-7 days. The Typhimurium serotype is the most common cause of gastroenteritis and there are an estimated 1.3 billion cases and 3 million deaths annually (1.4 million cases and 600 deaths in the US alone) due to non-typhoidal Salmonella.