Showing posts with label immunization. Show all posts
Showing posts with label immunization. Show all posts

Friday, January 30, 2015

Are We at War? The Vaccination vs. Anti-Vaccination Situation

http://www.egmnow.com/platforms/
In light of the current measles outbreak, I'd like to take a moment to reflect on the tremendously divided nature of the vaccine debate (or lack of debate) that exists in our country. It feels eerily similar to the Red vs. Blue State divide that has plagued us now for several decades. In both conflicts, there exists such fear, such misinformation, such geographic isolationism, such supreme sensitivity, and such a lack of communication that we simply stand opposed to one another without any productive conversation. I'm afraid that if we never come together to talk about these things, we'll make no progress.

 And, like many, I'd really like to see progress.

Let me out myself first: I am pro-vaccine. I come to the table with a very strong opinion that vaccination is a good thing. My son is uber-vaccinated-- because we have traveled extensively since he was an infant, he had early vaccines for measles and hepatitis A and is even vaccinated against yellow fever and typhoid. Just this week, he had his kindergarten boosters. I always get the annual flu vaccine, and though I am not convinced the data on pregnant women getting a whooping cough vaccine in the third trimester is that robust, I pulled up my sleeve and ceded to vaccination just last month-- trusting that the risk is minimal. I'm a public health enthusiast.

All this being said, I work intimately with hundreds of families who believe otherwise-- and I don't only work with them, I love them and care for them, and counsel them.

As a family doctor caring for a population who chooses overwhelmingly to make alternative vaccine choices, I often find myself in the uncomfortable place where the two worlds collide. And while I consider myself a  vaccine believer, I also find myself intensely offended by the denigrating tone so many take with people who choose to make the choice NOT to vaccinate. Perhaps it's because I know them personally. And I know that they want what we all want-- what's best for our children. It's just what's "best" may not be so black and white for some as those of us believers want to believe.

I also know that berating parents for the decisions they are making for their children is unlikely to change their minds.

After all, what was your response the last time you were berated?  Did you say, Hey thanks for calling me uneducated and stupid and ignorant. You are soooo right, let me reverse my entire decision-making process and go with yours?

Doubt it.
                                                                         ***

Vaccinators (of which I consider myself one) are those I will call "vaccine believers". That doesn't necessarily mean we believe in God, Santa Claus, or the Republican Party. In fact, a large proportion  is made up of  liberals and skeptics: academics, journalists, returned Peace Corps Volunteers, scientists, and scholarly folk. But vaccinators are a mixed bag: we also include immigrants, the urban poor, and others who either aren't empowered enough to question authority or those who have personally experienced vaccine-preventable disease. Most believers have never read a book or a study about the safety of vaccines-- even the scholarly subset. They don't need to. They take the recommended schedule (available here), follow it like a road map, and trust in the integrity of the institution of medicine and the wisdom of their predecessors. Both instill in them a steadfast trust in the value of vaccines. Perhaps most importantly, believers are descendants of vaccinators. Their perception of risk is reinforced by the community in which they live and by stories of vaccine-preventable illness.They may have traveled to a country where they have seen victims of polio or meningitis. They may be from one of those countries. Or maybe not. They don't harbor suspicion about the morality of governmental recommendations-- in fact, they trust and embrace both the integrity of science and the righteousness of health policy-makers. They do question the morality of people who choose to put communities at risk for their own personal interest.

Anti-vaccinators are those I will call "vaccine atheists".  Again, this designation has nothing to do with religion-- in fact one of the largest outbreaks of measles prior to our current one involved an enclave of orthodox Jews in New York who were choosing not to vaccinate based on religious teachings (see report here). I'm just borrowing recognizable terminology. Where I live, most anti-vaccinators are not particularly religious, though many would call themselves "spiritual". Like believers, atheists are a mixed bag: some are quite educated, others are not. For a range of reasons-- I'm not always sure why-- they do not fear the diseases that vaccines are targeted to prevent. They don't believe in the inherent value of immunization-- and they believe that the potential risks of said vaccines are more likely and more dangerous than the diseases themselves. Just like believers, most vaccine atheists have not extensively read books or studies about the safety of vaccines. They, too, don't really need to. They know vaccines carry risks, and they choose not to chance those risks. Their perception of risk is reinforced by the community in which they live and by isolated reports of horrible outcomes after vaccination. Some specifically fear autism, but for most, the theoretically risks are much more complex. Importantly, most are descendants of non-vaccinators. They look at the CDC recommendations and scoff at the ridiculous number of immunizations recommended. They know that there is always uncertainty in any medical intervention, they wonder what the actual risk is for their child, and they question both the science and the moral integrity of those making official recommendations.

                                                                ***

So, you see, there might be more similarities between the two groups than we might have previously guessed. We are all products of our upbringings. Neither side has read much. Neither can quote validated data. We both dig in our heels and hold our positions. And thus we quickly forget that we share some commonalities-- namely we live on the same planet and maybe even next door to each other, and we should be TALKING to each other.

Here's what I propose we talk about:

1) Fear
Vaccinators fear vaccine-preventable disease. They do not want measles, influenza, meningitis, or polio to be running around our country (and our world) infecting vulnerable children or frail adults. They do not want to return to a place where people die or are disabled from vaccine-preventable illness. Vaccinators also fear that decisions of others not to vaccinate put their children at risk. I get it.

http://wrightliving.com/fear-feel-alive/
Anti-vaccinators fear side effects, preservatives, chemicals, and immune loads. They fear the unknown. And they fear these more than the risk of illnesses that most have never seen. They do not want to expose their children unnecessarily to toxins that may put them at risk. Vaccinators may dismiss these fears-- citing examples of millions of children who have received such toxins without untoward side effects-- but in so doing, they neglect to validate that science is terribly imperfect, that in fact, scientists have frequently historically reversed themselves on interventions once deemed safe and necessary.

Let's talk about what scares us, why it scares us, and see if we can find some common ground. Let's talk about why some are afraid of the diseases and others of the vaccines. Let's see if we can reasonably sort out what we should be afraid of. . .and which fears we can probably set aside.

2) Misinformation
This is the trickiest for me-- as a scientist, doctor, and general book nerd, I love reading the data. My patients will tell you that a most common phrase out of my mouth starts with, "Studies have shown. . .". followed up by some really cool meaningful information that helps back up my recommendation.

http://ninapaley.com/mimiandeunice/wp-content/uploads/2010/09/ME_197_Misinformation.png
http://ninapaley.com/mimiandeunice/2010/09/17/misinformation/
And yet, as I have tried to find good information for my patients on the topic of vaccine safety, I have been terribly unimpressed-- by both sides of the topic. Most of the educational materials the CDC publishes is watered down, does not directly address my patients' specific concerns, and basically ends with "trust us". Now, I do trust the CDC, but not everyone does, and I can understand why. The CDC material often feels dismissive and, frankly, a little bit lacking. That being said, I find that most of the anti-vaccine material is inflationary and based in paranoia and fear rather than compiling what limited information is available. I have ordered at least half a dozen books to read on the topic and been thoroughly unimpressed by most of them.  For my vaccine skeptical families, I find myself recommending "The Vaccine Book" by Dr. Sears, which is imperfect but seems the best marriage of the two-- if you have other recommendations, please do let me know.

Let's talk about where you get your information. I'm curious. Can you please share resources you have found helpful? What about some that are unhelpful? Who do you trust? Why? Why not? What makes information trustworthy? What makes it untrustworthy? How much weight does anecdote carry in your decision making? What about a large population study? What can I do as your fellow human to make information feel more helpful?
http://www.washingtonpost.com/blogs/wonkblog/wp/2015/01/27



3) Geographic isolationism
Just like red versus blue, carnivore versus herbivore, and God versus not-God,  we humans tend to surround ourselves with people who have similar thinking and similar modus operandi. Research shows that differences in vaccine uptake are extremely geographical, which literally means that our neighbors reinforce whatever set of beliefs we tend already to have. When we geographically isolate ourselves, we conveniently reinforce our own beliefs (right or wrong) and protect ourselves from intelligent conversation that might challenge those beliefs. And in this way, we don't encourage ourselves (or our counterparts) to develop intelligible and meaningful responses to real and important questions. For example, why are some people so scared of preservatives in vaccines and others aren't? Why are some people so scared of vaccine-preventable illness and others aren't? Why might someone you love and respect make a totally different decision about something you find morally reprehensible? Shouldn't we know the answers to these most basic questions? . To get answers, though, we have to ask. And to ask, we have to not only come into contact with but also feel safe in the company of those who might think differently than us.

Let's reach across the aisle and be curious (and I mean non-judgey curiously curious) and cross over the line every once in awhile. We might be surprised to find ourselves more educated because of it-- being curious with my patients has certainly led me to read more and understand more what people are afraid of. And my patients being curious about my thoughts has hopefully helped them make informed decisions.

4) Sensitivity
Even in my own social circles, I have found the topic of vaccine choices to be off limits in mixed company-- other than in my exam room where I have some say over what conversations are cultivated. Living in Sonoma County, I am well aware that I am often in mixed vaccine company, and as a mother, I wouldn't touch the topic with a ten foot pole. Immunization in my town is right up there with super stigmatizing topics: how much money your family makes and whether you do crazy things in your bedroom. Rather than friends and family being a safe venue for intelligent conversation, I find that people are so sensitive about their choices (in both directions), that we're afraid to ask. In fact, I was out for coffee with a doctor friend just this week, and he casually inquired about another doctor friend's vaccination views. He knew my perspective and felt safe asking me about me, but had never discussed the issue with her, knowing it could get sensitive fast. This returns me to the important notion that we are so influenced by what is happening in our community, so that even people I might consider vocal vaccinators find themselves silenced. I am supremely aware that I may isolate and offend my patients if I simply try to bulldoze them with personal opinions-- I believe it is my duty as a physician to be sensitive to their vulnerabilities and present the topic in a loving and respectful manner-- even (or maybe especially) when I disagree.

Can we lower our own sensitivity about decisions we make for our families and temper our defensiveness so that we might have meaningful conversations on the topic? What might those conversations look like in a non-judgmental space? Might we find some more middle ground?


5) Lack of communication
Communication, of course, involves all of the above issues already mentioned and so much more. And while I personally feel strongly that my own children be fully vaccinated for their well-being as well as the well-being of our community, I am utterly turned off by the general blasting of non-vaccinators. It simply will not work to scare or judge or berate parents into making different choices. It won't work. This is not a war. This is not really about me versus you. This is an opportunity to engage in meaningful conversation about true risks of real disease and true risks and benefits of vaccine, true fears and true needs of parents to do what is right for their child AND for public health and feel comfortable doing so.

Do me a favor, and cool your jets. Ask someone you know and love but that you assume has a different opinion than you on the vaccine matter to share their reasoning. Listen. Discuss. And then share yours. Then listen some more. You might be surprised about what may come out of such a conversation. You might learn something, you might teach something, and we may all be grateful for the step forward.





Tuesday, February 11, 2014

These things are cyclical: the Olympics, fashion, and whooping cough


Whooping cough (in doctor-speak pertussis, caused by the bacterium Bordetella pertussis) is akin to presidential elections, fashion, and the Winter Olympics.


All are cyclical.

But while campaign schedules and the winter games follow a clear and predictable pattern (no one was taken by surprise when the Sochi games kicked off last week), fashion and whooping cough are a little less attached to the Gregorian calendar.

Fashion tends to follow relatively long cycles-- after all, most of us had to recover from the trauma of the '80s before hairspray and leggings showed up again in our closets. Rest assured, traumatized and recovered people, Juno Mars' Superbowl half-time show last week confirmed that the '80s are back.

Whooping cough cycles every 3-5 years
Whooping cough gives us less recovery time because it tends to emerge and submerge in cycles every three to five years.

Weird, right?!

It's not really understood why this is; the cycling probably has to do with a combination of something called herd immunity, parts of the actual bacteria life cycle, and some evil wizardry of nature.

The last bad cycle of whooping cough in California was in 2010.

In California in 2010, there were more than 9,100 documented (laboratory-confirmed) cases of whooping cough.  This was more cases than had EVER been reported in the vaccine era (The whooping cough vaccine came out in the 1940s). It can be assumed that there were many more thousand undocumented cases because many people with the disease don't actually get tested. Of these confirmed cases, 83% were in children under 18. That year, 10 California infants died of whooping cough. All infants were under three months of age, and most were under two months. Nine out of ten were Latinos. One of my wonderful residency classmates was involved in the care of one of those infants here in Sonoma County.

After that peak in 2010, California cases went down:
3,011 total cases in 2011
1,022 total cases in 2012
. . . but now cases seem to be increasing again:
2,372 cases in 2013.

For those Californians paying any attention, whooping cough may be coming baaaaack. Almost predictably so.

And the worst news of all? This week the California Department of Public Health announced the death of a 2 month old infant (the baby first got sick at 4 weeks of age). That's the first whooping cough infant death in California since the 2010 epidemic.

And that worries me-- and I'm thinking it should worry you as well.

What are the signs and symptoms of whooping cough?
You see, whooping cough is a pretty challenging diagnosis to make. In adults, whooping cough initially presents as a pretty mild respiratory illness, looking uncannily like the common cold.

Imagine this scenario: healthy adult comes to see her primary care provider with a few days of runny nose, low grade fever, and an intermittent cough. Astute clinician listens to her patient's lungs, checks her throat and her ears, feels reassured by no obvious bacterial infection (e.g. pneumonia, ear infection) and sends her on her way with recommendations about increasing fluids, considering zinc, vitamin C, honey and a few days of rest.

Welcome to my winter world.

But for one or two of those cases, oops, I could easily miss it! What turns out to be whooping cough looks waaaaay too much like a cold for me to distinguish between the two. As you know, antibiotics are never ever indicated for the common cold, and it can be tough to decide whether to even consider testing someone for pertussis. And we certainly don't want to be handing out antibiotics willy nilly (definite fodder for future post).

After all, odds are overwhelming that the sniffling mess in front of me has a boring cold.

And now, armed with my overly-confident reassurance, that previously healthy adult has been released back out into the world to share her undiagnosed (and untreated) pertussis with her family and friends. Off she goes to cough and snot and whoop about and spread what can be a deadly disease, particularly for our most vulnerable little ones. Let's hope she doesn't have any young infants at home!

It's estimated that for every primary care of pertussis, there are 15 secondary cases. That's pretty contagious.

What happens next is this: after four to 21 days of a little cold, that apparently simple illness develops into a more intense illness with attacks (fits) of intense coughing. These happen most often at night, averaging about 15 fits per 24 hours. This stage (called the "paroxysmal stage") usually lasts a few weeks but can last up to 10 weeks. Ugh. This is why whooping cough is sometimes called the "100 day cough". Pretty annoying.

And this is when some (but not all) people whoop.  If you want to hear what a whoop sounds like, check out this link.

Sounds pretty horrible, right? No one would miss that, right?

Here's the problem, though: plenty of adults and even infants with whooping cough don't actually ever whoop. Hmmm. . . Kiddos (i.e. ages 6-10) tend to be the whoopers, but not always them either. Goodness. And the little ones? Infants can present more subtly with poor feeding, periods of not breathing (aka apnea), and low heart rate.

The good news is that for kids and adults who get whooping cough, it's terribly annoying (no sleep, pee-your-pants annoying) without being life-threatening. The bad news is that infants can die.

In babies under one year old who get whooping cough, about half have to be hospitalized, and for those sick little guys and gals in the hospital, here are the stats:
  • 23% (1 in 4) get pneumonia (lung infection)
  • 1.6% (1-2 in 100) will have convulsions
  • 67% (67 in 100) will have apnea (periods where they stop breathing)
  • 0.4% (1 in 300) will get encephalopathy (disease of the brain)
  • 1.6%  (1-2 in 100) will die

Not good.

Whooping cough vaccination
In addition to the supremely important old school rules that you should ALWAYS follow when you are sick (you know, mom's rules: wash your hands, cover your cough, don't share utensils, don't go to work), the best way we know to prevent the spread of whooping cough is through vaccination.

There are two vaccines on the market: DTaP for infants and young children, Tdap for older children (over 7 years), adolescents, and adults. These are both combination vaccines: the "D" stands for diphtheria, the "T" for tetanus, and the "P" for pertussis. I've been asked a few times by parents who want to vaccinate only against pertussis; there is no way to get a vaccine with pertussis alone--anywhere in the world. It's not available.


The official CDC recommendation is for infants to be vaccinated with four total doses of  DTaP at two, four, six, and 12-15 months. Vaccine efficacy after three doses of DTaP is between 80-95%; unfortunately there is no good data about how much immunity a baby gets after a single shot. There is also a recommended "kindergarten booster" of DTaP at age four to six years.

A study from the 2010 California outbreak showed that of pertussis cases in seven to 10-year-olds, unvaccinated kids, or kids with less than 5 DTaPs were almost nine times as likely to get pertussis than kids who were up to date on their shots.

You may have noticed that the babies who died in the California epidemic of 2010 (and the recent death in 2013) were almost all younger than the lower age limit for the first DTaP. They were too young to be vaccinated, but their family members weren't! It is assumed that those babies were exposed to pertussis by children or adults in their households that were either un- or under-vaccinated. There greatest risk was their loved ones.

This brings up the topic of Tdap, a vaccine licensed in 2005 for adults and children 11 and up.

The Tdap vaccine has been in the news a lot the last few years:
For the last few years, we have been strongly promoting vaccinating people with Tdap who will be around new infants (moms, dads, siblings, caretakers, aunts, grandmas). You know who you are!
While 68% of teens have received their Tdap (brave teenagers!), estimates show that only 8% of adults are up to date on their Tdap vaccine. That's pretty pathetic!

The truth about vaccines
True true, vaccines are not perfect. Patients have the right to be skeptical about recommendations offered to them and to ask questions. It can be really challenging to find reliable answers to those questions, even for providers (like myself) who pride ourselves on being evidence-based and transparent.

Immunizations have side effects-- most of which are not serious--but rare serious effects do occur. God forbid one of those rare things happens to you or someone you love. I hope not! It is also true that no vaccine is 100% protective, and that's a bummer. So if your second cousin's aunt's brother tells you he was vaccinated and still got sick, it's probably true.

It's my daily reality that the medicine I practice is imperfect, but I believe strongly that the information we have for the safety and efficacy of most modern-day vaccines is based on robust scientific research, and we are a healthier human race because these vaccines exist.

If you have specific questions about vaccinations, their risks and/or your children's please please talk to your primary care provider. He/she should be a resource to you. Always.

And please consider getting yourself and your family up to date on their DTaP and/or Tdap vaccines. I know that there are LOTS and lots of reasons not to do it: you don't have time, you hate needles, you are scared of vaccine side effects, it seems like too many shots, it just doesn't seem worth it, you're lazy, you don't actually know who your primary care provider is, you have questions, you just don't want to. . .

Here's the bottom line, are any of these excuses worth a baby's life?

_________________________________________________________
Additional references:
http://www.cdc.gov/pertussis/images/pertussis-graph-2013-lg.gif
http://www.cdph.ca.gov/HealthInfo/discond/Documents/Pertussis%20report%202-4-2014.pdf
http://www.sciencebasedmedicine.org/pertussis-epidemic-2010/
Great lecture specifically for physicians: http://www.cdc.gov/vaccines/ed/pertussis/default.htm
http://www.immunize.org/askexperts/experts_diph.asp
http://www.cdc.gov/pertussis/about/complications.html