33
votes
Father gets chickenpox, but doesn't infect his two children. How is this possible?
If there was close contact, if the 90% rate is accurate, and if occurrence is independent in related individuals, then you would expect 0.10 * 0.10 = 1% of contacts with 2 potentially vulnerable ...
- 12k
14
votes
Accepted
Father gets chickenpox, but doesn't infect his two children. How is this possible?
To add to @BryanKrause's answer re: rare events happen all the time, the children are not out of the woods yet. The mean incubation time for a primary VZV infection (the clinical syndrome known as ...
- 3,153
8
votes
Father gets chickenpox, but doesn't infect his two children. How is this possible?
Apart from not getting infected due to pure chance (as mentioned already) there is one highly probable explanation (explanation, not overall chance).
People get, but don't show it:
asymptomatic ...
- 6,747
5
votes
Accepted
Can I contract chickenpox from my child who just got vaccinated?
Yes, you can contract it, but it is very unlikely.
The chickenpox vaccine is a live (attenuated) vaccine, meaning that it was weakened.
People who get chickenpox vaccines can spread the vaccine-...
- 6,998
4
votes
Accepted
Is ibuprofen contra-indicated for a child with chicken pox?
An earlier warning regarding medications in children with chicken pox came to the following conclusion:
The safety of ibuprofen suspension in children. (2003)
The risk of invasive Group A ...
- 6,747
3
votes
Can a pet dog be a carrier of chickenpox?
From Chickenpox:
Other animals
Humans are the only known animal that the disease affects naturally. However, chickenpox has been caused in other primates, including chimpanzees and gorillas.
...
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2
votes
What makes "chickenpox parties" recommended?
My recollection of that time was not that doctors recommended being exposed to chickenpox but rather that parents sometimes chose to expose their children at a time they felt might be more convenient ...
- 3,769
2
votes
Infectious chicken pox
You can continue to work as long as you take the usual common-sense precautions: wear clean clothes and wash your hands.
While varicella is one of the most contagious viruses we know of, the primary ...
- 8,784
2
votes
On the mechanics of chickenpox immunity for newborns and breastmilk antibody transfer
It is true that infants receive antibodies from the mother via the placenta in the final trimester of pregnancy and also in breastmilk.
Passive immunity
This is passive immunity, because the ...
- 2,331
1
vote
For Varicella zoster (chicken pox), when are vaccination/antiviral drugs effective?
According to the World Health Organization
Administering the vaccine up to 3-5 days after exposure has been shown to reduce the severity of the disease significantly, but studies vary greatly as to ...
- 1,970
1
vote
Accepted
Is the second vaccine dose necessary if seroconversion occurred after the first dose?
The only way to know the the level of conversion is through bloodwork to measure it and even that can be problematic. From the CD site:
Laboratory evidence of immunity or laboratory confirmation ...
- 482
1
vote
Is a child with chickenpox who is vaccinated still contagious?
From the CDC report:
Communicability
The period of communicability extends from 1 to 2 days
before the onset of rash until lesions have formed crusts.
Vaccinated persons with varicella may ...
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