Can you catch stomach bug twice?

Yes, it is possible to catch a stomach bug, or viral gastroenteritis, more than once. This is because there are many different viruses that can cause gastroenteritis, such as norovirus and rotavirus, and immunity to one strain may not protect you from others. Additionally, the immune response can wane over time, increasing the likelihood of reinfection. Practicing good hygiene and avoiding contaminated food and water can help reduce the risk of getting sick again.