The incubation period following exposure to the hepatitis E virus ranges from 2 to 10 weeks, with an average of 5â6 weeks. The infected persons are believed to excrete the virus beginning a few days before to around 3-4 weeks after the onset of disease.
For people paid every two weeks, there are 26 pay periods in a year. Two weeks makes 10 business days, for a total of 260 working days, not accounting for vacation time that you take. In the US people commonly say there are 260 weekdays/work days in a year or 2080 work hours in a year based on 52 weeks per year. (260 = 5wkdys/wk*52wks) (2080=40hrs/wk*52wks/yr) The number can vary by year. For example, 2012 had 261 weekdays and 366 total days.
You would have to take the number of weekday holidays that you have in a year and subtract that from 260.9 and then divide that answer by 12. As an example lets say you have 2 weeks vacation a year and 7 bank holidays. That would be 17 total days off a year. (260.9-17)/12 is approximately 20 5/16 days. Which, as I said before, is an average and only truly accurate over a period of 28 years and therefore could be very different from the actual number.