Diagnosis of viral infections can be carried out by testing the body fluids, the blood, or the specimen from the infected area of the body, which are examined with the help of an electron microscope. Viral infections such as measles and rubella are diagnosed on the basis of their symptoms. Some of the severe viral infections are diagnosed by examining the blood or the body fluids. For the last decade, prevalence of infectious diseases has been rising at a high rate. Growing preference for the self-diagnosis of viral diseases and increase in the detection of new, infectious viruses are major factors expected to drive the market for virus testing diagnostic kits in the near future. However, complex regulatory scenario regarding the approval for diagnostic tests for viral infections and increasing health care costs are expected to restrain the market during the forecast period.