Which type of study design is used in the following scenario:
a researcher interested in the incidence of chlamydia enrolls 1,000 college seniors. sexual habits are identified at baseline and every 6 months thereafter for four years. new cases of chlamydia are recorded over the four year follow-up period.

"griffith's experiment discovering the "transforming principle" in pneumococcus bacteria. griffith's experiment, reported in 1928 by frederick griffith, was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation." - griffith's experiment.

explanation:

idk