Adenoviruses: These viruses cause a variety of illnesses, including the common cold, infectious diarrhea, and conjunctivitis (pink eye).
Arenaviruses: These viruses can cause several illnesses, including Lassa fever, Junín virus, and Machupo virus.
Astroviruses: These viruses are a common cause of gastroenteritis, or inflammation of the stomach and intestines.
Caliciviruses: These viruses can result in several illnesses, including norovirus (which causes gastroenteritis) and hepatitis E.
Coronaviruses: These viruses can result in several illnesses, including the common cold, severe acute respiratory syndrome (SARS), and Middle East respiratory syndrome (MERS).
Flaviviruses: These viruses can cause several illnesses, including yellow fever, dengue fever, and Japanese encephalitis.
Hepatitis viruses: These viruses cause hepatitis, or inflammation of the liver. There are five main types of hepatitis viruses: hepatitis A, hepatitis B, hepatitis C, hepatitis D, and hepatitis E.
Herpesviruses: These viruses cause various illnesses, including the common cold sore, genital herpes, and chickenpox.
Influenza viruses: These viruses cause influenza, commonly known as the flu.
Measles viruses: These viruses cause measles, a highly contagious respiratory illness.
Mumps viruses: These viruses cause mumps, a viral infection that causes swelling of the salivary glands.
Orthomyxoviruses: These viruses cause several illnesses, including influenza and parainfluenza.
Papillomaviruses: These viruses cause various warts, including common warts, plantar warts, and genital warts.
Parvoviruses: These viruses can cause various illnesses, including parvovirus B19, which causes fifth disease (erythema infectiosum).
Picornaviruses: These viruses cause several illnesses, including the common cold, enterovirus infections (such as hand, foot and mouth disease), and polio.
Poxviruses: These viruses cause various diseases, including smallpox and monkeypox.
Retroviruses: These viruses cause several illnesses, including HIV/AIDS, human T-lymphotropic virus (HTLV), and feline leukemia virus (FeLV).
Rhabdoviruses: These viruses result in several illnesses, including rabies and vesicular stomatitis.
Rotaviruses: These viruses are the leading cause of severe gastroenteritis in children worldwide.
Rubella viruses: These viruses cause rubella, also known as German measles.
Togaviruses: These viruses can result in several illnesses, including chikungunya, Mayaro, and O'nyong-nyong fever.