Understanding Herpes Simplex
Herpes simplex is a viral infection caused by two types of herpes simplex virus: HSV-2 and HSV-1. HSV-2 is responsible for sexually transmitted genital herpes, while HSV-1 typically manifests as cold sores around the mouth, but it can also lead to genital herpes. These infections are chronic and affect nearly half of the global population. The primary mode of transmission is through contact with infected secretions, mucous membranes, and skin. The virus can survive outside the body for varying durations, ranging from a few hours to up to two months on surfaces, with longer survival in lower humidity conditions.
Cold and Influenza: How They Spread and Survive on Different Surfaces
Both cold and flu are contagious respiratory illnesses that can be transmitted through contact with infected respiratory droplets and contaminated surfaces. The duration of their contagiousness outside the body depends on factors such as humidity and surface material. Recent research suggests that these viruses can remain viable on certain surfaces for varying lengths of time.
Studies have shown that cold and flu droplets can survive for longer periods on non-porous surfaces, such as plastic and stainless steel, compared to cloth and paper tissues. For example, the new virus responsible for the recent pandemic has been found to persist on plastic surfaces for up to 72 hours, on stainless steel surfaces for up to 48 hours, and on cardboard surfaces for up to 24 hours.