Originally Posted by Rrrrrachel
The whooping cough vaccine is less effective than other vaccines, but avacinated child is still 9-23 times less likely to contract whooping cough than an unvaccinated one.
According to this study out of Germany, it looks like pertussis is 6 or 7 times more common in the unvaxxed. Look at the second graph
Whooping cough is a serious disease. Infants under one who contract the disease are hospitalized 50% of the time. 1 in 300 get encephalopathy and 1 in 100 die. This is leaving out other complications like pneumonia, convulsions, and apnea.
Whooping cough is most dangerous for those under 3 months - which is well before they are fully immunised for pertussis.
Some people try to argue low vaccination rate is part of the reason for the high rate of pertussis in infants.
I don't entirely think that is the case. Non-vaxxers don't vaccinate - and yet most other VPDs are not on the rise. Parents who do not vaccinate their children are a fairly small percentage of the population. Childhood vaccination rates are high and stable
If one wants to tackle non-vaxxers (not literally, I hope ) I would start with adults, most of whom are NOT up to date with their booster. It is questionable whether this would be effective, however. Australia has abandoned free Whooping cough shots, given they do not think boosters will help lower the amount of babies getting pertussis.
What I have been reading lately, and the stats I have seen support it, is that DTaP is simply not a good enough vaccine. DTP was more effective, but was more reactive. Even the CDC admits it http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6128a1.htm
"Pertussis is endemic in the United States. Although cyclical in nature, a gradual and sustained increase has been observed in the United States after reaching historic lows in the 1970s...
Acellular and whole-cell vaccines both have high efficacy during the first 2 years after vaccination, but recent changes in the epidemiology of pertussis in the United States strongly suggest diminished duration of protection afforded by childhood acellular vaccine (DTaP) compared with that of diphtheria and tetanus toxoids and whole-cell pertussis (DTwP) vaccine….."
(fwiw - the same CDC article suggested unvaxxed children are 8 times more likely to get pertussis. So, I am getting 6-8 percent, not sure where you are getting 9-23 from, Rachel).
Edited by kathymuggle - 8/25/12 at 6:42pm