Virus infection research focuses on the study of how viruses invade host cells, replicate, and spread throughout the body. This area of research aims to understand the mechanisms by which viruses interact with host cells, evade the immune system, and cause disease. Researchers in this field investigate various aspects of virus-host interactions, such as viral entry, replication, assembly, and release, as well as the host innate and adaptive immune responses to viral infection. The findings from virus infection research are critical for the development of antiviral therapies, vaccines, and diagnostic tools to combat viral diseases.