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"Vaccine refusal linked to California pertussis outbreak"

post #1 of 11
Thread Starter 

A new study appears to show that the big 2010 California outbreak of pertussis was more heavily linked to vaccine exemptions than previously thought. 

 

"The analysis identified 39 statistically significant geographical clusters with high rates of non-medical exemptions and two statistically significant clusters of pertussis cases. Census districts within an exemption cluster were 2.5 times more likely to also be in a pertussis cluster.

 

Both clusters were associated with "factors characteristic of high socioeconomic status," such as lower population density, lower average family size, lower percentage of racial or ethnic minorities and higher median household income. The study authors conclude that communities with large numbers of intentionally unvaccinated or undervaccinated persons can lead to pertussis outbreaks, putting vulnerable populations like young infants at increased risk." 

 

http://www.usatoday.com/story/news/nation/2013/09/30/whooping-cough-california/2877343/

 


Edited by teacozy - 9/30/13 at 12:33pm
post #2 of 11

teacozy, your quote from the USA Today article is 151 words long which is in violation of the UA. You might want to make use of http://wordcounttool.net/ in future.

post #3 of 11
Quote:
Originally Posted by teacozy View Post
 

A new study appears to show that the big 2010 California outbreak of pertussis was more heavily linked to vaccine exemptions than previously thought. 

 

"The analysis identified 39 statistically significant geographical clusters with high rates of non-medical exemptions and two statistically significant clusters of pertussis cases. Census districts within an exemption cluster were 2.5 times more likely to also be in a pertussis cluster.

 

Both clusters were associated with "factors characteristic of high socioeconomic status," such as lower population density, lower average family size, lower percentage of racial or ethnic minorities and higher median household income. The study authors conclude that communities with large numbers of intentionally unvaccinated or undervaccinated persons can lead to pertussis outbreaks, putting vulnerable populations like young infants at increased risk." 

 

http://www.usatoday.com/story/news/nation/2013/09/30/whooping-cough-california/2877343/

 

I am not going to comment on the quality of the study, as I have not looked into it.

 

That being said, if it is correct….well, it is what it is.  

 

In the unlikely incidence you live in an area with a high number of unvaxxed during a breakout, you may be more likely to get the disease.  I will say 2.5 times more likely to live in a pertussis cluster if your area has a low vaccination rate does not seem overly high (and if anyone wants to look at the study and see how they define pertussis cluster, that may be helpful).  Individual unvaxxed individuals have 7-10 times the rate of diagnosed pertussis as vaxxed individuals according to some studies. 

 

Of course, there is also a  lower rate of vaccine injuries and serious vaccine side effects in communities with lower vaccination uptakes.  It is hard to quantify vaccine injuries due to rampant under-reporting.  We cannot just compare rate during one time period either (such as an outbreak).  We need to look at overall rates.  

 

Vaccine rates are hardly the only factor in pertussis outbreaks.  People who do not vaccinate due to religious, philosophical or medical reasons are not huge in number.  

 

One solution maybe to develop programs to target the lapsed vaxxers - those who want to get a pertussis booster, but have not or cannot arrange it. Free clinics, work based clinics - that sort of thing.  I don't know how well it will work, as vaccination rates are probably not driving the issue.

 

They could also try to build a better vaccine - more effective and longer lasting.   

post #4 of 11
post #5 of 11

It is also possible that unvaxxed are more likely to be diagnosed with pertussis because a doctor might be more likely to check for pertussis in an unvaxxed individual.  

 

It does not necessarily mean they are more likely to have pertussis, just be tested for and thus diagnosed with it.  

 

A whole lot of vaxxed people do get pertussis - but it is asymptomatic or mild.  In addition to not being tested for it, they might not even seek medical care if they are not feeling overly ill.

 

I think a better study than diagnosis of pertussis according to vaccines uptake area might be hospitalization and fatality rate according to vaccination uptake area.  

post #6 of 11

Funny, the study's conclusion was, 

"Our data suggest clustering of NMEs may have been 1 of several factors in the 2010 California pertussis resurgence." Pediatrics 2013;132:624–630  

 

But the headline screams "Vaccination refusal linked to California pertussis outbreak!"

 

And that's not what the study concluded.

 

Also, did anyone notice that basically, all they did is show that both NME's and pertussis cases were linked with....families who were wealthy and educated enough to EITHER

1) bring their children to the pediatrician when they had a bad cough

or 

2) file for a NME.

 

Nice double standard here.  We shoot your kid with 45 vaccines, your kid gets autism, but correlation doesn't equal causation!

But we found POSSIBLE correlation of two issues that may or may not be related, AND THAT MEANS THEY'RE LINKED!!!!

post #7 of 11
Quote:
Originally Posted by Taximom5 View Post

Nice double standard here.  We shoot your kid with 45 vaccines, your kid gets autism, but correlation doesn't equal causation!
But we found POSSIBLE correlation of two issues that may or may not be related, AND THAT MEANS THEY'RE LINKED!!!!

Ha. So true.

post #8 of 11

I agree with the thoughts of a pp that families with higher education and higher income are more likely to get a proper diagnosis - or even take their kids to the doctor - for whooping cough.

 

We have pertussis in our school right now.  I have to say that parents who are not vaccinating, in our school, seem to be very well informed on how to recognize pertussis.  We're all getting an education!  One parent suspected her kids had it, took them to the doctor and the doc said it was just an allergy cough.  3 weeks later the youngest's cough started to end with the classic "whoop".  Then the doctor finally tested and diagnosed the whole family with pertussis.  The docs seem to assume you can't have pertussis if you have had the vaccine and don't test with due diligence.  So pertussis continues to be spread because people are not quarantining themselves until they get a diagnosis . . . often this doesn't happen for 2 or 3 weeks.  

 

I spoke with another mom at our school who had pertussis run through her whole family when their youngest was 2 months old.  Again, this family did not get a proper diagnosis until they had it for a month and the baby started having the classic "whoop".  Before it was just called croup.

 

I'd like to see a study where a whole isolated town was tested once every 2 weeks for 3 months around an identified pertussis case.  Then we would have an idea of who was carrying the bacteria, who had symptoms, how severe the symptoms were and then we could compare that with vaccine status, age, general health, socio-economic status, proximity to possible exposure, etc.

 

Maybe I should have a career change and become a research specialist.  : )  

post #9 of 11
Quote:
Originally Posted by OrmEmbar View Post
 

I agree with the thoughts of a pp that families with higher education and higher income are more likely to get a proper diagnosis - or even take their kids to the doctor - for whooping cough.

 

We have pertussis in our school right now.  I have to say that parents who are not vaccinating, in our school, seem to be very well informed on how to recognize pertussis.  We're all getting an education!  One parent suspected her kids had it, took them to the doctor and the doc said it was just an allergy cough.  3 weeks later the youngest's cough started to end with the classic "whoop".  Then the doctor finally tested and diagnosed the whole family with pertussis.  The docs seem to assume you can't have pertussis if you have had the vaccine and don't test with due diligence.  So pertussis continues to be spread because people are not quarantining themselves until they get a diagnosis . . . often this doesn't happen for 2 or 3 weeks.  

 

I spoke with another mom at our school who had pertussis run through her whole family when their youngest was 2 months old.  Again, this family did not get a proper diagnosis until they had it for a month and the baby started having the classic "whoop".  Before it was just called croup.

 

I'd like to see a study where a whole isolated town was tested once every 2 weeks for 3 months around an identified pertussis case.  Then we would have an idea of who was carrying the bacteria, who had symptoms, how severe the symptoms were and then we could compare that with vaccine status, age, general health, socio-economic status, proximity to possible exposure, etc.

 

Maybe I should have a career change and become a research specialist.  : ) 

yet it's the unvaccinated who are routinely blamed for spreading this disease.....riiiighhhhhtttt

post #10 of 11
Quote:
Originally Posted by OrmEmbar View Post
 

I agree with the thoughts of a pp that families with higher education and higher income are more likely to get a proper diagnosis - or even take their kids to the doctor - for whooping cough.

 

We have pertussis in our school right now.  I have to say that parents who are not vaccinating, in our school, seem to be very well informed on how to recognize pertussis.  We're all getting an education!  One parent suspected her kids had it, took them to the doctor and the doc said it was just an allergy cough.  3 weeks later the youngest's cough started to end with the classic "whoop".  Then the doctor finally tested and diagnosed the whole family with pertussis.  The docs seem to assume you can't have pertussis if you have had the vaccine and don't test with due diligence.  So pertussis continues to be spread because people are not quarantining themselves until they get a diagnosis . . . often this doesn't happen for 2 or 3 weeks.  

 

I spoke with another mom at our school who had pertussis run through her whole family when their youngest was 2 months old.  Again, this family did not get a proper diagnosis until they had it for a month and the baby started having the classic "whoop".  Before it was just called croup.

 

I'd like to see a study where a whole isolated town was tested once every 2 weeks for 3 months around an identified pertussis case.  Then we would have an idea of who was carrying the bacteria, who had symptoms, how severe the symptoms were and then we could compare that with vaccine status, age, general health, socio-economic status, proximity to possible exposure, etc.

 

Maybe I should have a career change and become a research specialist.  : ) 

yet it's the unvaccinated who are routinely blamed for spreading this disease.....riiiighhhhhtttt

post #11 of 11
NM
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