How many days can the hand, foot, and mouth disease virus survive?
May 24, 2022
Source: Cainiu Health
Dr. Zhang Weiling
Introduction
The causative agents of hand, foot, and mouth disease (HFMD) can remain viable for several days on clothing, towels, bedding, and toys at room temperature, and for several months in sewage and feces. Sources of HFMD transmission include both symptomatic patients and asymptomatic carriers. The virus is primarily present in blood, nasopharyngeal secretions, and feces; viral shedding in feces may persist for 4–8 weeks, with the highest infectivity occurring within the first week after symptom onset.
In general, the pathogens responsible for hand-foot-and-mouth disease (HFMD) exhibit strong resistance to physical and chemical factors; they can survive for several days on clothing, towels, bedding, and toys at room temperature.
The causative agents of HFMD belong to the *Picornaviridae* family and the *Enterovirus* genus, specifically including Coxsackieviruses, Echoviruses, and other enteroviruses.
Enteroviruses demonstrate marked resistance to physical and chemical agents: they remain viable for several days on clothing, towels, bedding, and toys at room temperature; persist for several months in sewage and feces; remain stable within a pH range of 3–9; withstand gastric acid, proteases, and bile in the gastrointestinal tract; and exhibit moderate resistance to heat and detergents. However, the virus is rapidly inactivated by heating at 50°C. Disinfection can be effectively achieved using various oxidizing agents, such as potassium permanganate, hydrogen peroxide, and bleaching powder.
Both symptomatic patients and asymptomatic carriers serve as sources of HFMD transmission. The virus is primarily present in blood, nasopharyngeal secretions, and feces. Viral shedding in feces may last 4–8 weeks, with peak infectivity occurring during the first week following symptom onset.
HFMD is transmitted predominantly via the fecal-oral route, followed by respiratory droplets and close personal contact. As a Class C notifiable infectious disease in China, HFMD necessitates good personal hygiene practices—especially frequent handwashing—among susceptible populations. In affected children, careful monitoring of body temperature is essential to prevent high fever, and oral hygiene should be maintained.
