Herpes Simplex Etiology
Causes Herpes simplex virus infection are included in the family herpesviridae, subfamily alphaherpesvirinae. HSV type 1 and type 2 can be distinguished immunologically (especially if you used a specific antibody or monoclonal antibody). And HSV type 1 and type 2 is also different when viewed from the growth pattern of the virus in cell culture, eggs and embryos in experimental animals.
Herpes Simplex Distribution
Scattered throughout the world. Hamapir 50% -90% of adults have antibodies to HSV 1. Initial infection of HSV 1 usually occurs before age 5 years, but now many primary infections are found occur in adults. Infection with HSV-2 usually starts because of sexual activity and rarely occur before adulthood, except in case of sexually abused children. HSV-2 antibody was found about 20% -30% of American adults. Prevalence of antibodies to HSV-2 increased (more than 60%) in lower socioeconomic groups and in people who have multiple sexual partners.
Reservoir - Humans serve as reservoirs.
Herpes Simplex Transmission
Contact with HSV 1 virus in the saliva of the carrier may be the most important in the spread of this disease. Infection can occur through the mediation of health care workers (such as dentists), from patients with HSV resulted in purulent lesions (herpetic whitlow). HSV2 transmission is usually through sexual intercourse. Both types of both type 1 and type 2 may be transmitted every related sites in the body through oral-genital contact, oral-anal, or anal-genital. Transmission to neonatas usually occurs through the infected birth canal, rarely occur in the uterus or postpartum.Causes Herpes simplex virus infection are included in the family herpesviridae, subfamily alphaherpesvirinae. HSV type 1 and type 2 can be distinguished immunologically (especially if you used a specific antibody or monoclonal antibody). And HSV type 1 and type 2 is also different when viewed from the growth pattern of the virus in cell culture, eggs and embryos in experimental animals.
Herpes Simplex Distribution
Scattered throughout the world. Hamapir 50% -90% of adults have antibodies to HSV 1. Initial infection of HSV 1 usually occurs before age 5 years, but now many primary infections are found occur in adults. Infection with HSV-2 usually starts because of sexual activity and rarely occur before adulthood, except in case of sexually abused children. HSV-2 antibody was found about 20% -30% of American adults. Prevalence of antibodies to HSV-2 increased (more than 60%) in lower socioeconomic groups and in people who have multiple sexual partners.
Reservoir - Humans serve as reservoirs.
Herpes Simplex Transmission
Incubation period
The incubation period lasts from 2 to 12 days.
Period of communicability
HSV can be isolated in 2 weeks and sometimes more than 7 weeks after a primary or appear stomatitis primary genital lesions. Both, that is either primary infection or reinfection may occur without symptoms. After that, HSV may be found in the mucosal intermittently for many years and perhaps even a lifetime, with or without clinical symptoms. In recurrent lesions, infektivitis shorter than the primary infection and the virus usually can not be found again after 5 days.