90% of adults are immune to chickenpox because it is a highly contagious disease that causes lifelong immunity. Most people got chickenpox as children prior to the approval of chickenpox vaccine.
Study results reported by the Centers for Disease Control and Prevention (CDC) indicate that more than 90% of American adults are immune to the chickenpox virus.
Yes, older adults can get chickenpox if they haven't had it before.
Children as a group are more likely to get chickenpox because they are less likely to have had chickenpox previously. Chickenpox is highly contagious, and usually confers lifelong immunity, so adults are likely to be immune. In countries without routine vaccination, 90% of adults are immune to chickenpox due to previous infection.
Chickenpox is very contagious, so that 90% of household contacts get the infection. As a result, in unimmunized populations, most adults are immune to chickenpox.
You are not likely to get chickenpox if you are immune, but it sometimes happens. When it does, the second case is usually mild with few bumps.
If you are not immune to chickenpox from previous infection or immunization, you may be at risk for chickenpox from exposure now. If you are immune, there is no risk.
Most people get chickenpox when they are young, which is good. Although children can pull through chicken pox easily, if not uncomfortably, it is much more devastating to adults. Plus, once you have it as a kid, the cells go into remission in your body, your B cells produce antibodies for chickenpox, and there's a extremely high chance that you will never get chickenpox again. But you can get it at any age.
Chickenpox is not usually fatal, but is more likely to kill teenagers and adults than it is to kill infants and children (see related link). Deaths and hospitalizations from chickenpox have dropped 90% in the US since introduction of chickenpox vaccine in 1995.
Yes, when your a child and you get chickenpox you develop immunity to it because your immune system understands the virus that gives you chickenpox so can battle it with ease. If you haven't had chicken pox yet, your immune system doesn't have time to understand the virus and therefore it's completely knew to your body.
No, progressive failure of the immune system is not an effect of chickenpox. HIV infection is one communicable disease that causes progressive failure of the immune system.
Both allergies and chickenpox involve the immune system and can cause itching.
It means you're immune to chickenpox.