The epidemic intelligence service sends in a team of investigators to determine the cause of a recent increase in acute pneumonia. this is an example of which type of essential public health services?

Therefore, this is an example of diagnosing and investigating health problems and hazards in a community.

Explanation:

EIS( epidemic intelligence service) is a post-doctoral program of two years in epidemiology. The persons involved in EIS are called disease detectives. The role of these people is to investigate the epidemics which can be caused naturally or artificially.

During an epidemic, these officers investigate the epidemic cause and help in implementing the control measures rapidly. They also do research on the epidemic by collecting evidence and make preventive measures about that disease.

Therefore, this is an example of diagnosing and investigating health problems and hazards in a community.