There are several types of diagnostic tests used in epidemiology, including molecular tests, serological tests, and imaging techniques. Molecular tests, such as PCR (Polymerase Chain Reaction), detect the genetic material of pathogens and are highly specific. Serological tests look for antibodies or antigens in the blood, indicating past or present infection. Imaging techniques, like X-rays or MRIs, help in visualizing internal structures and identifying disease impacts.
