<prompt> What is the recommended period of isolation for a suspected case of diphtheria?7 days10 days12 days14 days  <response>: All suspected or confirmed cases and carriers of diphtheria should be isolated preferably in a hospital for at least 14 days or until proved free of infection by two consecutive nose and throat swabs taken 24 hours apa. Ref: Park 21st edition, page 150. 