Vacinação: taxa de cobertura despenca no Brasil

Até 2015 as coisas iam bem. A maioria das vacinas contava com índices de cobertura igual ou acima dos 95% da população alvo, como recomenda a boa epidemiologia.
Considera-se que, observado esse limite de segurança, os vírus de sarampo, da coqueluche, da poliomielite e assim por diante perdem as condições de se propagar pela população. O sistema imune do vacinado impede a multiplicação das partículas virais.
Alguma coisa aconteceu a partir de 2015, e a taxa de cobertura começou a despencar. Tome o exemplo da pólio, uma infecção capaz de deformar os membros das crianças: de 98% naquele ano, a taxa de imunização caiu para 84% em 2016 e 77% em 2017.
Quedas abruptas também se registraram para outras doenças. O que estaria por trás dessa involução, num país cujo programa de vacinação sempre foi considerado exemplar?
As razões até aqui imaginadas não são convincentes. Fala-se que um falso sentimento de segurança se espalhou entre pais e mães; na cabeça das pessoas, as moléstias estariam erradicadas, ou quase, e a probabilidade de um filho contraí-las seria desprezível.
Mas isso não explica por que a virada se deu em 2015, muito menos sua velocidade. Após uma década ou mais com altas coberturas, de repente todo mundo se sentiu seguro?
Ah, as pessoas têm preguiça de ir até o posto de saúde, dizem. Os horários de atendimento não ajudam. Há muita gente mais preocupada em conseguir emprego etc.
Ora, os horários não mudaram em 2015, nem a pobreza deu um salto. O desemprego aumentou em 2015 e 2016, mas retomou patamares onde já estivera de 2002 a 2004 —quando as taxas de cobertura vacinal estavam lá em cima.
Meu palpite: cresce no Brasil um movimento subterrâneo contra vacinas. Não conheço estudos que apontem isso, mas conheço alguns casais, em geral de classe média alta, que se recusam a vacinar os filhos.
Há entre eles quem seja adepto de homeopatia. Outros ouviram falar que vacinas podem causar autismo (uma bobagem). Convenceram-se de que seus meninos, bem alimentados e assistidos, não correriam risco na hipótese improvável de contraírem um vírus desses.
Qualquer criança pode morrer de uma infecção dessas, embora hoje seja incomum. Ao não vaciná-las, porém, contribuem para manter os vírus em circulação e põem em risco outras crianças menos bem de vida.
A conversa mole do autismo surgiu em 1998, quando o médico Andrew Wakefield publicou artigo na revista Lancet dizendo que a vacina tríplice MMR poderia desencadear o transtorno mental. No ano seguinte, a cobertura no Reino Unido caiu para 80%.
Denúncias de conflito de interesses contra Wakefield começaram a avolumar-se até que, em 2010, a Lancet retraiu o artigo. O médico tentava patentear sua própria vacina. Acabou tendo sua licença profissional cassada.
Embora desacreditada pela ciência, a lenda ainda circula. O que leva pessoas de bem a acreditar que governos e sanitaristas participam de uma conspiração para fazer mal a crianças?
Ignorância, talvez, misturada como uma subideologia natureba, ela sim cúmplice de um crime de lesa-infância.
Marcelo Leite
É repórter especial da Folha, autor dos livros ‘Folha Explica Darwin’ (Publifolha) e ‘Ciência – Use com Cuidado’ (Unicamp).

84 Comments

  1. gamefly free trial

    I’m truly enjoying the design and layout of your blog.
    It’s a very easy on the eyes which makes it much more enjoyable for me to come here and visit more often. Did you hire
    out a designer to create your theme? Great work!

  2. minecraft for free

    Howdy! I understand this is kind of off-topic but
    I had to ask. Does operating a well-established blog such as yours require a massive
    amount work? I’m completely new to operating
    a blog however I do write in my diary on a daily basis. I’d like to start
    a blog so I can easily share my own experience and views online.
    Please let me know if you have any ideas or
    tips for new aspiring bloggers. Thankyou!

  3. g

    At this time it appears like Expression Engine is the top blogging platform out there right now.
    (from what I’ve read) Is that what you are using on your blog?

  4. download minecraft pc

    This is the right site for everyone who would like
    to understand this topic. You know so much its almost hard to argue
    with you (not that I personally would want to…HaHa). You certainly put a new spin on a subject that has been written about for a long time.
    Excellent stuff, just excellent!

  5. g

    Its not my first time to pay a visit this site, i am visiting this web site dailly and get nice facts from here every day.

  6. g

    Link exchange is nothing else but it is simply placing the
    other person’s website link on your page at appropriate place and other person will also do similar for you.

  7. g

    Hey there! Quick question that’s entirely off topic. Do you know how to make your site mobile friendly?
    My weblog looks weird when viewing from my
    iphone4. I’m trying to find a template or plugin that might be able to correct this issue.
    If you have any suggestions, please share. Many thanks!

  8. g

    We are a group of volunteers and starting a new scheme in our community.
    Your website provided us with valuable info to work on. You’ve done a formidable job and our whole community
    will be thankful to you.

  9. g

    I know this web page gives quality based content
    and other information, is there any other web site which presents
    these data in quality?

  10. how to download minecraft

    Wonderful goods from you, man. I’ve understand your stuff previous to and you are just too fantastic.
    I really like what you have acquired here, certainly like what you are stating and the way in which
    you say it. You make it entertaining and you still care for
    to keep it wise. I can’t wait to read far more from you.

    This is actually a tremendous web site.

  11. gamefly free trial

    You’re so cool! I don’t suppose I have read through a single
    thing like this before. So nice to discover another person with a few unique thoughts on this subject matter.
    Seriously.. thank you for starting this up. This website is something that is needed on the internet, someone
    with some originality!

  12. tinyurl.com

    Oh my goodness! Incredible article dude! Many thanks, However I am
    encountering problems with your RSS. I don’t know
    why I cannot join it. Is there anybody getting similar RSS issues?
    Anyone who knows the answer will you kindly respond?
    Thanks!!

  13. how to get help in windows 10

    Oh my goodness! Impressive article dude! Thanks, However I am experiencing issues with your RSS.

    I don’t understand the reason why I can’t subscribe to it.
    Is there anyone else having similar RSS issues? Anyone that knows
    the solution can you kindly respond? Thanx!!

  14. plenty of fish dating site

    I know this if off topic but I’m looking into starting my own blog
    and was wondering what all is required to get
    setup? I’m assuming having a blog like yours would cost a pretty
    penny? I’m not very web smart so I’m not 100% sure. Any tips or advice would be greatly appreciated.
    Kudos

  15. natalielise

    Hello there! This post couldn’t be written any better! Reading this post reminds me of my previous room
    mate! He always kept talking about this. I will forward this
    write-up to him. Pretty sure he will have a good read. Thanks for sharing!
    plenty of fish natalielise

  16. marketing digital

    obviously like your web-site however you have to check the spelling on quite a few of your posts. Several of them are rife with spelling issues and I find it very bothersome to inform the reality however I will certainly come back again.

  17. jack3d

    Greetings! I know this is kinda off topic but I was wondering if you knew where I could get a captcha plugin for my comment form? I’m using the same blog platform as yours and I’m having trouble finding one? Thanks a lot!

  18. minecraft games

    The other day, while I was at work, my cousin stole
    my apple ipad and tested to see if it can survive a forty
    foot drop, just so she can be a youtube sensation. My iPad is now broken and she has 83 views.
    I know this is totally off topic but I had to share
    it with someone!

  19. quest bars cheap

    Please let me know if you’re looking for a article author for your blog.
    You have some really good posts and I think I would be a
    good asset. If you ever want to take some of the load
    off, I’d absolutely love to write some material for your
    blog in exchange for a link back to mine. Please blast me an email if interested.
    Kudos!

  20. quest bars cheap

    Hi, I do believe this is an excellent blog. I stumbledupon it 😉 I may
    come back once again since i have saved as a favorite
    it. Money and freedom is the greatest way to change, may you
    be rich and continue to guide others.

  21. Anti Depressivo

    What’s Happening i am new to this, I stumbled upon this I have found It positively useful and it has aided me out loads. I hope to contribute & help other users like its aided me. Great job.

  22. locação de moveis

    Hi there, just became alert to your blog through Google, and found that it is really informative. I am going to watch out for brussels. I’ll be grateful if you continue this in future. A lot of people will be benefited from your writing. Cheers!

  23. minecraft games

    Hey this is kinda of off topic but I was wanting to know if blogs use WYSIWYG editors
    or if you have to manually code with HTML. I’m starting a blog
    soon but have no coding expertise so I wanted to get advice from someone with experience.

    Any help would be enormously appreciated!

  24. see this page

    I?¦m not certain the place you are getting your information, however great topic. I must spend a while learning much more or figuring out more. Thanks for excellent information I used to be looking for this information for my mission.

  25. ansiedade

    Hey just wanted to give you a quick heads up and let you know a few of the images aren’t loading properly. I’m not sure why but I think its a linking issue. I’ve tried it in two different web browsers and both show the same results.

  26. ASSAÍ

    Hey There. I found your blog the usage of msn. That is an extremely smartly written article. I will make sure to bookmark it and come back to read more of your useful info. Thanks for the post. I’ll certainly comeback.

  27. CS claro HD

    Hiya very nice blog!! Man .. Beautiful .. Wonderful .. I will bookmark your site and take the feeds also…I’m happy to seek out so many useful information right here in the put up, we want work out more strategies on this regard, thanks for sharing.

  28. Loja Nerd

    Thanks for any other informative site. The place else may just I am getting that kind of info written in such a perfect method? I’ve a venture that I am simply now operating on, and I’ve been on the look out for such info.

  29. anabol 5 vantagens

    I just couldn’t depart your web site before suggesting that I actually enjoyed the standard information a person provide for your visitors? Is gonna be back often to check up on new posts

  30. emprestimo consignado militar exercito

    My spouse and i felt really thankful when Peter managed to complete his investigation via the precious recommendations he gained from your web pages. It is now and again perplexing just to possibly be giving for free concepts people today may have been making money from. And we also fully grasp we need the writer to be grateful to for this. The specific explanations you made, the simple website navigation, the friendships you can aid to promote – it’s got many superb, and it’s facilitating our son and the family reason why this article is exciting, which is certainly especially mandatory. Thanks for the whole lot!

  31. consignado da marinha

    Hello! I could have sworn I’ve been to this blog before but after browsing through some of the post I realized it’s new to me. Anyways, I’m definitely happy I found it and I’ll be book-marking and checking back frequently!

  32. dog bite lawyer

    I like what you guys are up too. Such clever work and reporting! Keep up the excellent works guys I’ve incorporated you guys to my blogroll. I think it’ll improve the value of my website 🙂

Deixe uma resposta

O seu endereço de e-mail não será publicado.