How can a school be getting an epidemic of whooping cough if most of the students are vaccinated?
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
asked 5 hours ago
Tyler DurdenTyler Durden
18418
add a comment |
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
asked 5 hours ago
Tyler DurdenTyler Durden
18418
related
– De Novo
2 hours ago
add a comment |
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
asked 5 hours ago
Tyler DurdenTyler Durden
18418
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
vaccination whooping-cough epidemic
asked 5 hours ago
Tyler DurdenTyler Durden
18418
asked 5 hours ago
Tyler DurdenTyler Durden
18418
asked 5 hours ago
Tyler DurdenTyler Durden
18418
asked 5 hours ago
Tyler DurdenTyler Durden
18418
asked 5 hours ago
Tyler DurdenTyler Durden
18418
18418
related
– De Novo
2 hours ago
add a comment |
related
– De Novo
2 hours ago
related
– De Novo
2 hours ago
related
– De Novo
2 hours ago
add a comment |
1 Answer
1
active
oldest
votes
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.
answered 4 hours ago
ventsyvventsyv
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.
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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "607"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmedicalsciences.stackexchange.com%2fquestions%2f18733%2fhow-can-a-school-be-getting-an-epidemic-of-whooping-cough-if-most-of-the-student%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
answered 4 hours ago
ventsyvventsyv
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.
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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
add a comment |
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.
answered 4 hours ago
ventsyvventsyv
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.
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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
add a comment |
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.
answered 4 hours ago
ventsyvventsyv
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.
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.
answered 4 hours ago
ventsyvventsyv
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.
answered 4 hours ago
ventsyvventsyv
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.
answered 4 hours ago
ventsyvventsyv
1311
answered 4 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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
add a comment |
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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins 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
2 hours 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
2 hours ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
@DeNovo: That said, pertussis/whooping cough seems to be an unusually bad case. The vaccine was adjusted for reduced side-effects (from whole cell to acellular) a couple decades ago, and the new version has lower efficacy, and it wanes rapidly.
– ShadowRanger
12 mins ago
add a comment |
Thanks for contributing an answer to Medical Sciences Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmedicalsciences.stackexchange.com%2fquestions%2f18733%2fhow-can-a-school-be-getting-an-epidemic-of-whooping-cough-if-most-of-the-student%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
related
– De Novo
2 hours ago