Genital herpes is most frequently associated with herpes simplex virus 2 (HSV2), while herpes simplex virus 1 (HSV1) has been associated more often with oral herpes (cold sores). However, new evidence suggests that both viruses can live in either location: HSV1 can spread to the genitals and cause genital herpes, while HSV2 can be spread to the oral mucosa to cause cold sores.

In adult populations, cytomegalovirus poses the greatest risk to immunocompromised individuals, such as people on immunosuppressive drugs or in HIV patients who have developed AIDS. In pregnant people, CMV generally does not pose a risk to the mother, but rather to the fetus. Athletes and teens that are not immunocompromised often will have mild or unnoticeable symptoms when infected with CMV.

Molluscum contagiosum is a form of poxvirus. Poxviruses are a family of enveloped group 1 double-stranded DNA viruses that includes molluscum contagiosum virus, smallpox virus, vaccinia virus, and monkeypox. 

All forms of warts are caused by the virus HPV, or human papillomavirus. In addition, HPV is the cause of a variety of dysplasias, including cervical dysplasia, vulvar dysplasia, and oropharyngeal cancer. None of the other viruses listed are associated with warts of any kind.

While HPV strains 31 and 33 have been associated with genital malignancies, more than 70% of cervical dysplasia is associated with HPV strains 16 and 18. Strains 6 and 11 are associated with genital warts, while 2 and 7 are associated with common warts.

While all of the strains of HPV may cause condylomata acuminata, 90% of all cases of genital warts are caused by just two strains: 6 and 11. 

There are more than 130 types of herpes viruses. Of those, 8 are known to infect humans. Some of the more common examples are herpes simplex 1 and 2, varicella / zoster, Epstein-Barr virus, and cytomegalovirus. Less common viruses include human herpes virus 6, human herpes virus 7, and Kaposi's sarcoma-associated herpesvirus. Rotavirus is not a herpes virus; rather, it is a double-stranded RNA virus in the Reoviridae family. 

Human papillomavirus has been associated with several forms of cancer, including cancers of the cervix, vulva, anus, and oropharynx. It is also associated with penile and vaginal dysplasias. 

Rhinovirus, a type of picornavirus, is implicated in up to 50-80% of cases of the common cold. Other less common causes include human coronavirus (15% of cases), influenza (10%), and adenovirus (5%). 

The majority of infectious vomiting and diarrhea in infants and young children is viral in origin, with the most commonly implicated virus being rotavirus. Norovirus is  another common cause of viral gastroenteritis in individuals of all ages, though it is not as common in young children as rotavirus.