How Long Is Tonsillitis Contagious, and How Long Should You Take Off From Work or School?

Contagious Period of Tonsillitis

Tonsillitis can be caused by various pathogens, including viruses and bacteria. The contagious period depends on the underlying cause:

• Viral Tonsillitis: This type is often caused by common viruses, such as the adenovirus or Epstein-Barr virus. Viral tonsillitis is contagious as long as symptoms are present, which can vary from a few days to a week.
• Bacterial Tonsillitis: The most common bacterial cause is Group A Streptococcus (strep throat). This type is contagious until the person has been on appropriate antibiotics for at least 24 hours. After this period, the risk of spreading the infection significantly decreases.

Time Off from Work or School

The duration of time off from work or school can vary based on the severity of symptoms and the cause of the tonsillitis:

• If Bacterial: If diagnosed with bacterial tonsillitis and prescribed antibiotics, individuals should stay home for at least 24 hours after starting treatment. It is also advisable to remain at home until they feel well enough to participate in normal activities, which may take a few days.
• If Viral: For viral tonsillitis, individuals should stay home until they feel better and are no longer experiencing significant symptoms, such as fever, severe sore throat, or fatigue. This may take several days, depending on the individual’s recovery.

General Recommendations

In addition to staying home during the contagious period, individuals with tonsillitis should practice good hygiene to prevent spreading the infection. This includes:

• Washing hands frequently.
• Avoiding close contact with others.
• Not sharing utensils, drinks, or personal items.