<prompt> Incubation period of pertusis is-1-7 days7-14 days15-28 daysMore than 28 days  <response>: Ans. is b 7-14 days Ref :Park 20e, p 149 18e, p136, 17e, p130, 16e,p129 The I.P.s of some more diseases which are often asked in various P.G. entrance examinations are :Incubation period of Pertussis 7-14 daysIncubation period of Diptheria 2-6 daysIncubation period of Mumps 2-3 wks usually 18 daysIncubation period of Rubella 2-3 wks usually 18 daysIncubation period of Measles 10 days from exposure to onset of fever and 14 days to appearance of rash.Incubation period of Chickenpox 14-16 days. 