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  2. Jun 29, 2022 · It can take about 9 to 10 days for symptoms to develop after exposure to an infected person. Roseola is no longer contagious after the fever has been gone for 24 hours. Unlike chickenpox and other childhood viral illnesses that spread rapidly, roseola rarely results in a communitywide outbreak.

  3. Jun 20, 2023 · Roseola symptoms. Roseola is most often caused by human herpesvirus 6, which has an incubation period of around 9-10 days. However, some children may show symptoms sooner. It’s also...

  4. It may take 5 to 15 days for a child to have symptoms of roseola after being exposed to the virus. A high fever may start suddenly and may reach 105°F (40.5°C). The fever lasts 3 to 5 days and then suddenly goes away.

  5. Jun 12, 2023 · It takes anywhere from five to 15 days for symptoms to start after exposure to a virus that causes roseola. Your child is contagious and can spread roseola to others while they have a fever and for 24 hours after the fever goes away. A fever is a temperature of 100.4 degrees F (38 degrees C) or higher.

  6. Mar 9, 2021 · When symptoms do appear, the first thing you’ll notice is a sudden, high fever (over 103 F) that lasts or can come and go for 3-7 days. Other than the fever, your child might seem healthy....

  7. Apr 5, 2024 · Symptom Duration. When to Seek Medical Care. Roseola , also known as sixth disease or roseola infantum, is a viral illness that causes a high fever followed by a rash. The rash usually develops just as the fever resolves. It is common in children ages 3 months to 4 years and most common in infants 6 to 12 months.

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