How can a school be getting an epidemic of whooping cough if most of the students are vaccinated?How cautious...

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How can a school be getting an epidemic of whooping cough if most of the students are vaccinated?


How cautious do I need to be with unvaccinated students around newborns?Can getting the flu shot make you sicker next year?Can the HPV vaccine be effective if you are already infected?Is getting the chickenpox vaccination twice in a month harmful?References for comprehensive guideline for individualized vaccination schedulesWhy is the Rotavirus vaccine can be given only until the age of 8 months and 0 days?What are the differences of the US vaccine schedule compared to other countries?Does vaccination weaken the immune system ? Studies?Why is there no toxoplasmosis vaccine?What percent of people in the United States are vaccinated against measles?













1















Apparently a private school is experiencing an outbreak of whooping cough. However, the article said that only 18 of the students in the school (out of 1500 or so) were unvaccinated, yet already 30 have the disease. Presumably some of the infected students were vaccinated. How can this be?










share|improve this question























  • related

    – De Novo
    1 hour ago
















1















Apparently a private school is experiencing an outbreak of whooping cough. However, the article said that only 18 of the students in the school (out of 1500 or so) were unvaccinated, yet already 30 have the disease. Presumably some of the infected students were vaccinated. How can this be?










share|improve this question























  • related

    – De Novo
    1 hour ago














1












1








1


1






Apparently a private school is experiencing an outbreak of whooping cough. However, the article said that only 18 of the students in the school (out of 1500 or so) were unvaccinated, yet already 30 have the disease. Presumably some of the infected students were vaccinated. How can this be?










share|improve this question














Apparently a private school is experiencing an outbreak of whooping cough. However, the article said that only 18 of the students in the school (out of 1500 or so) were unvaccinated, yet already 30 have the disease. Presumably some of the infected students were vaccinated. How can this be?







vaccination whooping-cough epidemic






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asked 3 hours ago









Tyler DurdenTyler Durden

18418




18418













  • related

    – De Novo
    1 hour ago



















  • related

    – De Novo
    1 hour ago

















related

– De Novo
1 hour ago





related

– De Novo
1 hour ago










1 Answer
1






active

oldest

votes


















3














Per the CDC:




A: Pertussis vaccines are effective, but not perfect. They typically
offer good levels of protection within the first 2 years after getting
the vaccine, but then protection decreases over time. Public health
experts call this ‘waning immunity.’ Similarly, natural infection may
also only protect you for a few years.



In general, DTaP vaccines are 80% to 90% effective. Among kids who get
all 5 doses of DTaP on schedule, effectiveness is very high within the
year following the 5th dose – at least 9 out of 10 kids are fully
protected. There is a modest decrease in effectiveness in each
following year. About 7 out of 10 kids are fully protected 5 years
after getting their last dose of DTaP and the other 3 out of 10 kids
are partially protected – protecting against serious disease.



CDC’s current estimate is that in the first year after getting
vaccinated with Tdap, it protects about 7 out of 10 people who receive
it. There is a decrease in effectiveness in each following year. About
3 or 4 out of 10 people are fully protected 4 years after getting
Tdap.



Keeping up-to-date with recommended pertussis vaccines is the best way
to protect you and your loved ones.




Given the size of the school and the effectiveness of the vaccine, it appears that ~30 infected kids is within what's expected.






share|improve this answer








New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

    – De Novo
    1 hour ago











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1 Answer
1






active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









3














Per the CDC:




A: Pertussis vaccines are effective, but not perfect. They typically
offer good levels of protection within the first 2 years after getting
the vaccine, but then protection decreases over time. Public health
experts call this ‘waning immunity.’ Similarly, natural infection may
also only protect you for a few years.



In general, DTaP vaccines are 80% to 90% effective. Among kids who get
all 5 doses of DTaP on schedule, effectiveness is very high within the
year following the 5th dose – at least 9 out of 10 kids are fully
protected. There is a modest decrease in effectiveness in each
following year. About 7 out of 10 kids are fully protected 5 years
after getting their last dose of DTaP and the other 3 out of 10 kids
are partially protected – protecting against serious disease.



CDC’s current estimate is that in the first year after getting
vaccinated with Tdap, it protects about 7 out of 10 people who receive
it. There is a decrease in effectiveness in each following year. About
3 or 4 out of 10 people are fully protected 4 years after getting
Tdap.



Keeping up-to-date with recommended pertussis vaccines is the best way
to protect you and your loved ones.




Given the size of the school and the effectiveness of the vaccine, it appears that ~30 infected kids is within what's expected.






share|improve this answer








New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

    – De Novo
    1 hour ago
















3














Per the CDC:




A: Pertussis vaccines are effective, but not perfect. They typically
offer good levels of protection within the first 2 years after getting
the vaccine, but then protection decreases over time. Public health
experts call this ‘waning immunity.’ Similarly, natural infection may
also only protect you for a few years.



In general, DTaP vaccines are 80% to 90% effective. Among kids who get
all 5 doses of DTaP on schedule, effectiveness is very high within the
year following the 5th dose – at least 9 out of 10 kids are fully
protected. There is a modest decrease in effectiveness in each
following year. About 7 out of 10 kids are fully protected 5 years
after getting their last dose of DTaP and the other 3 out of 10 kids
are partially protected – protecting against serious disease.



CDC’s current estimate is that in the first year after getting
vaccinated with Tdap, it protects about 7 out of 10 people who receive
it. There is a decrease in effectiveness in each following year. About
3 or 4 out of 10 people are fully protected 4 years after getting
Tdap.



Keeping up-to-date with recommended pertussis vaccines is the best way
to protect you and your loved ones.




Given the size of the school and the effectiveness of the vaccine, it appears that ~30 infected kids is within what's expected.






share|improve this answer








New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

    – De Novo
    1 hour ago














3












3








3







Per the CDC:




A: Pertussis vaccines are effective, but not perfect. They typically
offer good levels of protection within the first 2 years after getting
the vaccine, but then protection decreases over time. Public health
experts call this ‘waning immunity.’ Similarly, natural infection may
also only protect you for a few years.



In general, DTaP vaccines are 80% to 90% effective. Among kids who get
all 5 doses of DTaP on schedule, effectiveness is very high within the
year following the 5th dose – at least 9 out of 10 kids are fully
protected. There is a modest decrease in effectiveness in each
following year. About 7 out of 10 kids are fully protected 5 years
after getting their last dose of DTaP and the other 3 out of 10 kids
are partially protected – protecting against serious disease.



CDC’s current estimate is that in the first year after getting
vaccinated with Tdap, it protects about 7 out of 10 people who receive
it. There is a decrease in effectiveness in each following year. About
3 or 4 out of 10 people are fully protected 4 years after getting
Tdap.



Keeping up-to-date with recommended pertussis vaccines is the best way
to protect you and your loved ones.




Given the size of the school and the effectiveness of the vaccine, it appears that ~30 infected kids is within what's expected.






share|improve this answer








New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.










Per the CDC:




A: Pertussis vaccines are effective, but not perfect. They typically
offer good levels of protection within the first 2 years after getting
the vaccine, but then protection decreases over time. Public health
experts call this ‘waning immunity.’ Similarly, natural infection may
also only protect you for a few years.



In general, DTaP vaccines are 80% to 90% effective. Among kids who get
all 5 doses of DTaP on schedule, effectiveness is very high within the
year following the 5th dose – at least 9 out of 10 kids are fully
protected. There is a modest decrease in effectiveness in each
following year. About 7 out of 10 kids are fully protected 5 years
after getting their last dose of DTaP and the other 3 out of 10 kids
are partially protected – protecting against serious disease.



CDC’s current estimate is that in the first year after getting
vaccinated with Tdap, it protects about 7 out of 10 people who receive
it. There is a decrease in effectiveness in each following year. About
3 or 4 out of 10 people are fully protected 4 years after getting
Tdap.



Keeping up-to-date with recommended pertussis vaccines is the best way
to protect you and your loved ones.




Given the size of the school and the effectiveness of the vaccine, it appears that ~30 infected kids is within what's expected.







share|improve this answer








New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this answer



share|improve this answer






New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









answered 3 hours ago









ventsyvventsyv

1311




1311




New contributor




ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






ventsyv is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

    – De Novo
    1 hour ago



















  • Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

    – De Novo
    1 hour ago

















Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

– De Novo
1 hour ago





Yes, outbreaks of this sort typically start with an unvaccinated index case and are able to spread because of the population of susceptible individuals, but end up infecting some vaccinated children. See my answer on Biology.SE, which discusses other outbreaks since 2000.

– De Novo
1 hour ago


















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