How long is mono contagious cdc. People continue to be contagious while symptoms are present, which can last two to four weeks or more. During this time frame, anyone with mono can pass the infection on Health experts aren't sure how long people with mono stay contagious after symptoms are gone, but it seems they can spread the infection for months after that. After you get an EBV infection, the virus becomes latent (inactive) in your body. You're most likely to get mononucleosis CDC provides information on pertussis for the public, healthcare providers, and others. May 9, 2024 · People who get symptoms from EBV infection, usually teenagers or adults, get better in 2 to 4 weeks. In some cases, the virus may reactivate. May 26, 2020 · On average, most people with mono are contagious for around 6 months. Even researchers aren’t totally sure. It’s hard to say exactly how long the infection is contagious. Wondering if mono is contagious? Learn how long kids are infectious, when they can go back to school, and what to expect during mono recovery. Feb 7, 2025 · Appendix A: Type and Duration of Precautions Recommended for Selected Infections and Conditions from the Guideline for Isolation Precautions: Preventing Transmission of Infectious Agents in Healthcare Settings (2007). Aug 18, 2025 · You are likely to be less contagious after your symptoms fully resolve but some people, like those with immunocompromising conditions, can shed the virus for a long time. May 9, 2024 · Key points Infectious mononucleosis, also called “mono,” is a contagious disease. Jan 17, 2025 · Learn about cytomegalovirus (CMV), a common virus for people of all ages, and who is most at risk. However, some people may feel fatigued for several weeks or even months. Jun 21, 2025 · Find out how long is Mononucleosis contagious and when it's safe to return to school, work, or social activities. Mono is contagious during the incubation period, even before symptoms start. . You can get it through kissing, but you can also be exposed by sharing a glass or food utensils with someone who has mono. Mono is a viral infection that causes symptoms like fatigue, swollen glands, and a severe sore throat. CDC uses these data to identify trends and guide prevention efforts. Nov 30, 2022 · Infectious mononucleosis (mono) is often called the kissing disease. In some cases, it could be contagious for up to 18 months. There is no vaccine to protect against infectious mononucleosis. 5 days ago · Other Viruses and Bacteria that Cause Respiratory Illness CDC tracks the severity and impact of respiratory illnesses and the spread of the germs that cause them using data collected from sources like emergency departments, hospitals, labs, and health departments. The virus that causes mono (Epstein-Barr virus) is spread through saliva. However, mononucleosis isn't as contagious as some infections, such as the common cold. Most people with mono get better in 2 to 4 weeks, but some may feel fatigued for several more weeks. Then, the virus stays dormant (inactive) in the body for the rest of a person's life. If you develop a fever or you start to feel worse after you have gone back to normal activities, stay home and away from others again. rree tojepo idbud djdut cvlltme