In the United States, shoes are sized for length and width. Nine widths are available, ranging from AAA (narrowest) to EEE (widest). For men, a D width is considered a medium; for women, a medium is a B width. For comfortable shoe-wearing, it is important to get your width right.
The incubation period for HPV ranges from 1 to 6 months; however, latency periods of up to 3 years or more are suspected. The lesions are present for several months and usually regress spontaneously within two years, although some may persist indefinitely.
The incubation period of hepatitis A virus (HAV) is 2-7 weeks (average, 28 days). Clinical symptoms then develop, often with a presentation similar to that of gastroenteritis or a viral respiratory infection.