Conditions favorable to population screening for symptomatic diagnosis includes a relatively high prevalence of disease, availability of effective treatment, a screening test with high sensitivity and the presence of a physician that can perform the test. Screening is a technique used in population to detect presence of not yet diagnosed disease in individuals without having signs or symptoms. They are several types of this screening such as universal screening,case findings and others. There are several principles employed by the WHO as a guidelines for practice of screening for diseases. Commonly, there are various programmes employed for screening diseases such as cancer screening, PPd test, screening for metabolic diseases and others.
Answer:
Blowfly adults looking for a place to lay their eggs
Explanation:
Blowfly adults are attracted to the gases and fluids of a dead body and usually lay their eggs on a dead body within the first two days after death.
The eggs then turn into larvae then enter pupal stages and then become adults themselves. Forensic entomologists can determine how long a body has been dead by the stage of development of the blowfly with the ambient temperatures that have been present.