Herpes simplex viruses-1 and -2 (HSV-1 and -2) are two of the three human alphaherpesviruses that cause infections worldwide. Since both viruses can be acquired in the absence of visible signs and symptoms, yet still result in lifelong infection, it is imperative that we provide interventions to keep them at bay, especially in immunocompromised patients. While numerous experimental vaccines are under consideration, current intervention consists solely of antiviral chemotherapeutic agents. This review explores all of the clinically approved drugs used to prevent the worst sequelae of recurrent outbreaks by these viruses.

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Background Herpes simplex virus-1 (HSV-1) is a member of the alphaherpesvirus (alphaherpesvirinae) subfamily, allowing it to affect a wide range of hosts. Herpes simplex virus-1 affects 3.7 billion people, or 67% of the population, under the age of 50. With a vast number of people infected by the virus, everyday objects are often contaminated with this agent. In this study we determined how long HSV-1 can remain viable on contaminated fomites. Methods Fomites were selected for their use near potentially contaminated orifices and variable frequency of sanitization. Toothbrushes and surrogate phallic devices (SPDs) were cut, sterilized, and contaminated. After contaminating the fomites, we collected samples over a 24 h period, then used plaque assays to determine viral titers at prescribed time points. Results The quantity of replication-competent virus present appears to decrease significantly 2 h post-contamination, then steadily declines over time, nearing zero at 24 h. Conclusions Our findings suggest that different surfaces influence HSV-1 survival. Proper cleaning must be performed for these types of fomites, especially if shared in an environment where someone with active genital or oral herpes lesions uses one of these fomites shortly after someone else.

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