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- Almost everyone has gotten chickenpox by their adulthood
- If one person has it 90% of the people around them probably have gotten it
- Rashes can show up 3 to 21 days after coming into contact with someone who was it

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Dr Michiaki Takahashi, MD; Osaka University's Medical School

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In this researching finding it was over how the vaccine helps lower cases. In the left graph its pre-vaccine and how a lot of people have Chickenpox. Then the right one is about cases of people with the vaccine. When looking at both graphs you can see the difference that the vaccine can make. (More)

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The best way to prevent chickenpox is to get the vaccine.
Addition to getting the vaccine you can also practice good hygiene and wash your hands frequently.

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Diagnosis- Doctors can tell one has chickenpox based on the rash, but if it can also be confirmed by lab tests.

Treatments- Lotions and cool baths with added backing soda can help relieve the itching. Additionally the use of over the counter medications can also help treat the fevers like acetaminophen.

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Signs are fever, tiredness, loss of appetite, and headaches.
Complications are infections in both lungs and bloodstream, swelling in your brain, and lastly dehydration.

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Centers for Disease Control and Prevention

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Anyone who has not had chickenpox or gotten the chickenpox vaccine can get the disease. Chickenpox illness usually lasts about 4 to 7 days.

The classic symptom of chickenpox is a rash that turns into itchy, fluid-filled blisters that eventually turn into scabs. The rash may first show up on the chest, back, and face, and then spread over the entire body, including inside the mouth, eyelids, or genital area. It usually takes about one week for all of the blisters to become scabs.

Other typical symptoms that may begin to appear one to two days before rash include:

fever

tiredness

loss of appetite

headache

Children usually miss 5 to 6 days of school or childcare due to chickenpox.

Chickenpox in Vaccinated People (Breakthrough Chickenpox)

Some people who have been vaccinated against chickenpox can still get the disease. However, they usually have milder symptoms with fewer or no blisters (or just red spots), a mild or no fever, and are sick for a shorter period of time than people who are not vaccinated. But some vaccinated people who get chickenpox may have disease similar to unvaccinated people.

People at Risk for Severe Chickenpox

Some people who get chickenpox may have more severe symptoms and may be at higher risk for complications. For more information, see complications.

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Learn more about chickenpox signs and symptoms. The classic symptom is a rash that turns into itchy, fluid-filled blisters that eventually turn into scabs.

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varicella-zoster virus
- its what causes both Chickenpox and shingles

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"It is a really contagious disease caused by the varicella-zoster virus. It causes an itchy, blister-like rash. The rash can appear on the chest, back, and face, and then spread."

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Centers for Disease Control and Prevention

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Chickenpox is very contagious. If one person has it, up to 90% of the people close to that person who are not immune will also become infected. Chickenpox can also be serious, even life-threatening, especially in babies, adolescents, adults, pregnant women and people with weakened immune systems. Before the vaccine was available, about 4 million people got chickenpox each year in the United States, over 10,500 of those people were hospitalized, and about 100-150 people died.

Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). It can cause an itchy, blister-like rash. The rash appears first on the chest, back, and face, and then spreads over the entire body.

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Learn more about chickenpox, a highly contagious disease caused by varicella-zoster virus (VZV). It can cause an itchy, blister-like rash.