How long does a stomach virus last ?

How Long Does a Stomach Virus Last?

The duration of a stomach virus, commonly known as viral gastroenteritis, varies based on the causative agent and individual factors. Two primary examples of stomach viruses are norovirus and rotavirus, which exhibit differing timelines for symptoms and recovery.

 

Norovirus

• Symptoms: Typically appear 12 to 48 hours after exposure, lasting up to 72 hours.
• Recovery Time: Generally resolve within 1–2 days.
• Contagion Period: Remain contagious for several days after symptoms disappear.

 

Rotavirus

• Symptoms: Usually manifest 1–2 days after exposure, persisting for approximately 3–8 days.
• Recovery Time: Infants tend to recover within 3–8 days.

In contrast, adenovirus, while affecting the digestive system, also impacts the respiratory system and can result in symptoms within 2 days to 2 weeks.Recovery from adenovirus typically takes around 5–7 days.

It is important to note that the duration of immunity to norovirus gastroenteritis has been estimated at 4·1 to 8·7 years, suggesting that reinfection is unlikely within this timeframe· However, variations in the duration of immunity depend on numerous factors, including the presence of multiple strains and emerging new variants.

 

For optimal recovery, patients should maintain hydration, consume easy-to-digest foods, and avoid sharing personal items with infected individuals. Cleaning contaminated surfaces is critical to prevent further spread of the virus.