home
RSS
Study: Don't delay measles vaccine
May 19th, 2014
02:18 PM ET

Study: Don't delay measles vaccine

There are many myths about vaccinations floating around the Internet, says Dr. Simon Hambidge. One - that giving vaccinations too close together is unhealthy - has prompted some parents to request that their children receive vaccines on an alternate schedule, Hambidge told CNN in an e-mail.

Hambidge, an expert in pediatric vaccination with Kaiser Permanente's Institute for Health Research Colorado, is lead author of a new study that examines the association between vaccine timing and seizures.

His team found that in the first year of life, there is no relationship between the recommended vaccine schedule and seizures. But delaying the measles vaccine until after a child is 15 months old may raise his or her seizure risk. The study results were published Monday in the journal Pediatrics.

"A number of people have claimed that a young child’s immune system is not robust enough to be given multiple vaccines, and that it is safer to 'spread out' vaccination," Hambidge said. "There is no scientific evidence for this, and there is evidence that it is safe and effective to follow the current recommended schedule."

Background

Parents who don't comply with recommended guidelines for childhood vaccines are in a sizable minority.

A study using the 2009 National Immunization Survey found that 25.8% of parents delayed the vaccines, 8.2% refused to get their children vaccinated, and 5.8% both delayed and refused, Hambidge said. The rest did not delay or refuse. These data come from parents of children aged 24 to 35 months.

Parents' fears are mostly about autism, Hambidge said, even though no scientific link has been proven between the two.

Methods

For this study, researchers obtained data on more than 300,000 children born between 2004 and 2008. They looked at a variety of different vaccines and their associated seizure risks.

There are two options for vaccinating children against measles: the measles-mumps-rubella (MMR) vaccine plus a separate varicella vaccine, and the measles-mumps-rubella-varicella (MMRV) vaccine. The Centers for Disease Control and Prevention tells parents that while MMRV results in one fewer vaccine, it is associated with a higher risk of seizures.

U.S. health authorities recommend that children receive their first dose of the MMR or MMRV vaccine at 12 to 15 months of age.

Results

The study suggests that children who receive childhood vaccines in the first year of life do not have an associated risk of seizure. But seizure risk may increase in the second year of life with measles vaccines specifically.

The overall risk of seizures in vaccines that contain measles is "real but very low," Hambidge said - it's about 1 in 4,000 doses, according to previous research. It appears that the risk of seizures is about 2 in every 4,000 doses for children who receive the first MMR vaccine between 16 and 23 months of age.

"Febrile seizures that occur after MMR vaccine are rare and temporary – these children are not at increased risk of epilepsy," Hambidge said. "The risk of catching measles disease is far more serious, especially as we are seeing increased cases of measles in the U.S."

(A febrile seizure is a convulsion in young children that may be caused by a spike in body temperature, often from an infection.)

Meanwhile, the study found that getting the MMRV vaccine, instead of the MMR and varicella vaccines separately, increases the risk of seizures twofold - regardless of whether the vaccine was given on time. The association with seizures was strongest for children who received the MMRV vaccine between 16 and 18 months of age.

The results support a 2010 study that found additional febrile seizure risk from using MMRV instead of MMR plus varicella separately. But the absolute risk remains small: For every 2,300 MMRV doses given in the second year of life, there is one additional febrile seizure in the seven to 10 days following vaccination.

Recommendations

"This study supports the currently recommended vaccination schedule from the CDC as the best choice for protecting children from serious disease and minimizing adverse events from vaccination," Hambidge said.

Bottom line: Do what your doctor says and vaccinate against measles on time. Have a conversation about MMRV versus MMR if you have questions or concerns. The CDC recommends receiving the MMR and varicella injections separately.

"Because the U.S. is seeing the largest increase in measles cases in recent memory due to unvaccinated travelers returning from trips abroad, the risk of not vaccinating a child for measles or for delaying vaccination is that the child is left vulnerable to catching measles, which is a very serious disease," Hambidge said.

Related: Measles cases at highest level in nearly 20 years


soundoff (370 Responses)
  1. LmoppEncox

    http://essaywriteris.com/ – best essay writer who can write my essay for me write my college essay for me how can i pay someone to write my essay

    March 25, 2021 at 04:22 | Report abuse | Reply
  2. BrfgMile

    https://ljcialishe.com/ – cialis sample https://cialisvja.com/ – buy cialis generic https://viagraonlinejc.com/ – viagra alternatives https://viagratx.com/ – will a walk-in clinic prescribe viagra https://buycialisxz.com/ – viagra vs cialis forum

    March 29, 2021 at 12:22 | Report abuse | Reply
  3. denebola

    Yoᥙ can certainly see your enthusiasm in the article you write.
    The world hopes for even more passionate writeгs such as you who aren't afraid to mention how they believe.
    Alѡays go aftеr your heart.

    March 29, 2021 at 20:59 | Report abuse | Reply
  4. FbshEncox

    https://thesisacloud.com/ – thesis help best thesis writing service thesis review help thesis

    April 3, 2021 at 10:06 | Report abuse | Reply
  5. vardenafil- vardenafil tablet, film coated

    vardenafil prices https://vegavardenafil.com/ is vardenafil in the va formulary

    April 11, 2021 at 18:23 | Report abuse | Reply
  6. buy erection pills

    erectile medications https://canadaerectiledysfunctionpills.com/ partner with erectile dysfunction

    April 11, 2021 at 22:25 | Report abuse | Reply
  7. ed pills vardenafil

    vardenafil 20mg https://vegavardenafil.com/ where to buy online vardenafil with out prescribed

    April 12, 2021 at 16:58 | Report abuse | Reply
  8. average perscription pills taken by 65 year old canadian?

    best canadian mail order pharmacies for diet pills https://canadapillstorex.com/ canadian generic pills

    April 13, 2021 at 23:12 | Report abuse | Reply
  9. generic tadalafil 40 mg

    tadalafil 60 mg for sale https://elitadalafill.com/ tadalafil daily use

    April 14, 2021 at 05:11 | Report abuse | Reply
  10. where to buy alprostadil gel

    illegal sales of alprostadil https://alprostadildrugs.com/ injectable drug for erectile dysfunction

    April 16, 2021 at 15:27 | Report abuse | Reply
  11. canada pharmacies viagra

    anyone order viagra from canada https://canadaviagrastore.com/ viagra without a doctor prescription canada

    April 16, 2021 at 15:58 | Report abuse | Reply
  12. buy cheap zithromax online

    zithromax azithromycine https://zithromaxes.com/ zithromax 250

    April 17, 2021 at 07:30 | Report abuse | Reply
  13. mspy free trial

    219733 846727I identified your weblog site on google and check a couple of of your early posts. Proceed to preserve up the extremely good operate. I just extra up your RSS feed to my MSN News Reader. Looking for ahead to reading extra from you later on! 229599

    April 17, 2021 at 22:31 | Report abuse | Reply
  14. zithromax online purchase

    z pack mg dosage https://zithromaxes.com/ what is zithromax prescribed for

    April 17, 2021 at 23:17 | Report abuse | Reply
  15. alprostadil cream for sale

    administration of topical alprostadil https://alprostadildrugs.com/ alprostadil injection demonstration

    April 19, 2021 at 12:37 | Report abuse | Reply
  16. tadalafil max dose

    tadalafil pills 20mg https://elitadalafill.com/ tadalafil pills 20mg

    April 20, 2021 at 08:23 | Report abuse | Reply
  17. canadian pills pharmacy

    canadian pills online https://canadapillstorex.com/ average perscription pills taken by 65 year old canadian?

    April 21, 2021 at 11:29 | Report abuse | Reply
  18. AbdgEncox

    canada pharmacies online pharmacy https://canadianeve21.com/ Oxytrol

    April 22, 2021 at 16:43 | Report abuse | Reply
  19. canada pharmacies viagra

    viagra canada for sale https://canadaviagrastore.com/ buy viagra online from canada

    April 22, 2021 at 19:19 | Report abuse | Reply
  20. JbsdEncox

    Brand Viagra Lisinopril Prometrium

    April 22, 2021 at 19:51 | Report abuse | Reply
  21. LhdvZisse

    generic cialis 5 mg http://asciled.com/ О±П…ОёОµОЅП„О№ОєОї П‡О±ПЂО№ cialis

    April 23, 2021 at 09:33 | Report abuse | Reply
  22. FbsfEncox

    cheap prescription drugs http://uspharmus.com/ prescription drugs online without

    April 23, 2021 at 10:57 | Report abuse | Reply
  23. BbdfMile

    viagra memes http://gensitecil.com/ plant viagra

    April 23, 2021 at 17:42 | Report abuse | Reply
  24. LrbsEncox

    buy levitra cheap levitra tabletas levitra cheaper

    April 23, 2021 at 23:36 | Report abuse | Reply
  25. AbdgEncox

    online discount pharmacy http://canadianeve21.com/ canadian meds

    April 24, 2021 at 01:27 | Report abuse | Reply
  26. RfvbZisse

    cialis http://cileve.com/ cialis nz online

    April 25, 2021 at 02:00 | Report abuse | Reply
  27. RfvbZisse

    cialis cheaper https://cileve.com/ cialis nex day delivery uk

    April 25, 2021 at 12:50 | Report abuse | Reply
  28. JbsdEncox

    Exelon http://onlinecanda21.com/ Viagra

    April 26, 2021 at 08:41 | Report abuse | Reply
  29. LrbsEncox

    levitra pill price viagra plavix cialis lipitor synthroid levitra propecia levitra cost walgreens

    April 26, 2021 at 10:35 | Report abuse | Reply
  30. FbsfEncox

    cheap prescription drugs online https://uspharmus.com/ Aspirin

    April 26, 2021 at 11:30 | Report abuse | Reply
  31. LhdvZisse

    cialis vs viagra https://asciled.com/ generic cialis no prescription paypal

    April 26, 2021 at 21:42 | Report abuse | Reply
  32. dapoxetine

    dapoxetine hydrochloride priligy tablets uk

    April 27, 2021 at 00:43 | Report abuse | Reply
  33. best canadian mail order pharmacies for diet pills

    canadian pills online https://canadapillstorex.com/ average perscription pills taken by 65 year old canadian?

    April 27, 2021 at 02:17 | Report abuse | Reply
  34. GvdbCrulk

    discount tadalafil http://boxtadafil.com/ tadalafil/oxytocin sublingual troches

    April 27, 2021 at 23:16 | Report abuse | Reply
  35. how to buy sildenafil online

    20mg sildenafil online prescription https://eunicesildenafilcitrate.com/ generic sildenafil 20 mg tablet

    April 28, 2021 at 08:46 | Report abuse | Reply
  36. dapoxetine

    priligy pills dapoxetine for sale

    April 28, 2021 at 22:03 | Report abuse | Reply
  37. is it safe to get viagra from canada

    getting viagra from canada with no prescription https://canadaviagrastore.com/ anyone order viagra from canada

    April 29, 2021 at 01:40 | Report abuse | Reply
  38. LhdvZisse

    buy cialis/canada https://asciled.com/ – cialis free trial offer cheap cialis 20mg

    April 29, 2021 at 07:13 | Report abuse | Reply
  39. AbdgEncox

    most reliable canadian pharmacies https://canadianeve21.com/ – Epitol cheap prescription drugs online

    April 29, 2021 at 13:32 | Report abuse | Reply
  40. avana

    avanafil buy avanafil 100

    April 29, 2021 at 23:43 | Report abuse | Reply
  41. JbsdEncox

    Voveran SR cheap canadian drugs Lozol

    April 30, 2021 at 06:33 | Report abuse | Reply
  42. BbdfMile

    women viagra pill https://gensitecil.com/ tadalafil vs viagra

    April 30, 2021 at 10:07 | Report abuse | Reply
  43. GvdbCrulk

    difference between cialis and tadalafil https://boxtadafil.com/ – buy tadalafil 5mg tadalafil cheap

    May 1, 2021 at 00:45 | Report abuse | Reply
  44. FbsfEncox

    canadian pharmacy viagra generic http://uspharmus.com/ Penegra

    May 1, 2021 at 08:20 | Report abuse | Reply
  45. LrbsEncox

    viagra cialis levitra canada buy levitra on line levitra dosage drug

    May 1, 2021 at 11:21 | Report abuse | Reply
  46. RfvbZisse

    buy black cialis http://cileve.com/ wallmart cialis

    May 1, 2021 at 22:46 | Report abuse | Reply
  47. AbdgEncox

    Hytrin http://canadianeve21.com/ canada drugs

    May 2, 2021 at 01:29 | Report abuse | Reply
  48. cheap erectile dysfunction pills online

    erectile function magnesium vitamin k https://canadaerectiledysfunctionpills.com/ is erectile dysfunction normal

    May 2, 2021 at 03:32 | Report abuse | Reply
  49. RfvbZisse

    cheap generic cialis canada https://cileve.com/ – cialis online cheap overnight pharmacy cialis

    May 2, 2021 at 12:05 | Report abuse | Reply
  50. aralen phosphate chloroquine phosphate

    chlorodine https://chloroquineorigin.com/ chloroquin side effects

    May 3, 2021 at 02:08 | Report abuse | Reply
1 2 3 4 5 6 7 8

Leave a Reply to cheap erectile dysfunction pills online


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.