How many STIs are there and what are their names?
The number of STIs (sexually transmitted infections) will vary depending on what is counted as an STI and whether sexually transmissible infections are also counted. The Medical Institute (http://www.medinstitute.org) uses a list of STIs that is adapted from chapter headings in a standard STI textbook (usually referred to by the name of its primary editor, K. K. Holmes) 7. This list, which appears below in alphabetical order, has 29 different infections.
