Infections is the process of the invasion and multiplication of microorganisms such as bacteria, viruses, and parasites that are not normally present within the body. An infection may cause no symptoms and be subclinical, or it may cause symptoms and be clinically apparent. An infection may remain localized, or it may spread through the blood or lymphatic vessels to become systemic.
Bacteria reproduce by splitting in two, while viruses replicate themselves inside host cells. Many bacterial infections can be treated successfully with antibiotics, but these are useless against viral infections.
Related Journals of Infections
Healthcare Infection, Infection and Chemotherapy, American Journal of Infection Control, Sexually Transmitted Infections, Epidemiology and Infection