当前位置:首页 >> 英语学习 >>

经济学人2016年3月26日A jab in time


Vaccination

A jab in time
Some Western countries have lower vaccination rates than poor parts of Africa. Anti-vaxxers are not the main culprits

Mar 26th 2016

| From the print edition

ERADICATING a disease is the sort of aim that rich countries come up with, and poor ones struggle to reach. But for some diseases, the pattern is reversed. These are the ailments for which vaccinations exist. Many poor countries run highly effective vaccination programmes. But as memories of the toll from infectious diseases fades across the rich world, in some places they are making a comeback. The World Health Organisation (WHO) reckons that vaccines save 2.5m lives a year. Smallpox was eradicated in 1980 with the help of a vaccine; polio should soon follow. In both cases, rich countries led the way. The new pattern looks very different.

The trend is most evident for measles, which is highly contagious. At least 95% of people must be vaccinated to stop its spread (a threshold known as “herd immunity”). Although usually mild, it can lead to pneumonia and cause brain damage or blindness. The countries with the lowest vaccination rates are all very poor, but many developing countries run excellent programmes (see chart). Eritrea, Rwanda and Sri Lanka manage to vaccinate nearly everyone. By contrast

several rich countries, including America, Britain, France and Italy, are below herd immunity.

Last year Europe missed the deadline it had set itself in 2010 to eradicate measles, and had almost 4,000 cases. America was declared measles-free in 2000; in 2014 it had hundreds of cases across 27 states and last year saw its first death from the disease in more than a decade. The trends for other vaccine-preventable diseases, such as rubella, which can cause congenital disabilities if a pregnant woman catches it, are alarming, too. This sorry state of affairs is often blamed on hardline “anti-vaxxers”, parents who refuse all vaccines for their children. They are a motley lot. The Amish in America spurn modern medicine, along with almost everything else invented since the 17th century. Some vegans object to the use of animal-derived products in vaccines’ manufacture. The Protestant Dutch Reformed Church thinks vaccines thwart divine will. Anthroposophy, founded in the 19th century by Rudolf Steiner, an Austrian mystic-cum-philosopher, preaches that diseases strengthen children’s physical and mental development.

INTERACTIVE: Explore vaccination coverage and measles cases worldwide from 1980 to 2014

In most countries such refuseniks are only 2-3% of parents. But because they tend to live in clusters, they can be the source of outbreaks. A bigger problem, though, is the growing number of parents who delay vaccination, or pick and choose jabs. Studies from America, Australia and Europe suggest that about a quarter of parents fall into this group, generally because they think that the standard vaccination schedule, which protects against around a dozen diseases, “overloads” children’s immune systems, or that particular vaccines are unsafe. Some believe vaccines interfere with “natural immunity”. Many were shaken by a claim, later debunked, that there was a link between autism and the MMR vaccine, which protects against measles, mumps and rubella. In America, some poor children miss out on vaccines despite a federal programme to provide the jabs free, since they have no regular relationship with a family doctor. Some outbreaks in eastern Europe have started in communities of Roma (gypsies). Members of this poor and ostracised minority are shunned by health workers and often go unvaccinated. Several governments are trying to raise vaccination rates by making life harder for parents who do not vaccinate their children. A measles outbreak last year that started with an unvaccinated child visiting Disneyland and spread from there to seven states prompted California to make a full vaccination record a condition of entry to state schools. The previous year, in a quarter of schools too few children had been vaccinated against measles to confer herd immunity. A dozen other states are considering similar bills. After a toddler died from measles last year, Germany recently started to oblige parents who do not wish

their children to be vaccinated to discuss the decision with a doctor before they can enroll a child in nursery. Australia’s new “no jabs, no pay” law withdraws child benefits from parents who do not vaccinate, unless they have sound medical reasons. Persuasion, a fine art There is, however, surprisingly little evidence that tough laws make a big difference to vaccination rates. European countries that are similar in most respects (such as the Nordics) may have similar rates for jabs that are mandatory in one country but not in another—or very different rates despite having the same rules. Rates in some American states where parents can easily opt out are as high as in West Virginia and Mississippi, which have long allowed only medical exemptions. And strict rules may even harden anti-vaccination attitudes. Australia had previously made exemption conditional on speaking to a doctor or nurse about the benefits of vaccines. The new rules mean fewer chances to change parents’ minds. Research suggests that making it harder to avoid the most important vaccines may make it more likely that people who strongly oppose vaccination in general shun optional ones, says Cornelia Betsch of the University of Erfurt. More important, say public-health experts, is to boost confidence in the safety of vaccines and trust in the authorities that recommend them—both badly damaged in many European countries by pastpublic-health mis-steps, such as a scandal with contaminated blood supply in France from the late 1990s. The best way to handle a vaccine scare is to express empathy and promptly share the results from investigations of alleged adverse reactions, says Heidi Larson of the London School of Hygiene and Tropical Medicine. British authorities’ dismissive response to the MMR scare failed to reassure worried parents. One promising new approach is to keep track of the vaccine myths circulating in cyberspace and rebut each one as it appears. This requires tracking information from search engines and following anti-vaccination websites and parents’ forums. On one such forum, worriers say they have scoured government and vaccine-manufacturer websites but feel overwhelmed by information that they regard as inconclusive or contradictory. One mother seeks advice on how to get around California’s “fascist” new rule. Another casts doubt on a study on severe allergic reactions to vaccines: 33 cases from 25m jabs, she says, seems “fishily low”. Some countries are starting information campaigns that treat such concerns with respect. A parents’ organisation in Bulgaria launched one recently, under the

auspices of the ministry of health and the national association of paediatricians. Its website is jargon-free and easier to navigate than unwieldy official hubs. France is launching a national dialogue on vaccines this spring, with a website where citizens can swap gripes, worries and advice. Although vaccine-hesitant parents often search for answers on the internet, their most trusted sources are doctors and nurses. The WHO recently developed guidelines to help health workers figure out, through a questionnaire, which type of worrier a parent is—and how to alleviate specific concerns. But recent research from several European countries shows that many doctors and nurses are also hesitant about vaccines, for much the same reasons as their patients. In a survey conducted in 2014, 16-43% of French family doctors said they never or only sometimes recommended some of the standard vaccines. An additional problem is that many adults were not immunised as children and have not caught up since. In the 1970s and 1980s, when the measles vaccine was new, many children did not receive it, or got just one shot, which is now known not to be reliable in conferring immunity. Some countries offer free catch-up jabs to some adults when outbreaks flare up—usually parents with small children and health workers in affected areas. But such efforts have, on the whole, been too little, too late. The return of easily preventable diseases that had all but disappeared is a shame. A bigger shame would be for governments to continue blaming it all on ignorant parents.


赞助商链接
相关文章:
经济学人100篇精选文章
经济学人100篇精选文章_经济/市场_经管营销_专业...[2010.02.18]Assassinations:A time to kill 暗杀...Alone in the crowd 群体的孤独感 259 [2010.3....
经济学人官方双语汇总
经济学人官方双语汇总(1~5 月)科技向 3D 打印...This leads consultants at PWC to conclude in a ...试验于 2016 年开始。另一家汽车制造商 菲亚特(其...
经济学人 Democratic convention
经济学人(1-3) 12页 免费 经济学人双语 7页 免费...time defending the public sector and praising ...In Tampa, Republicans talked a lot about their ...
经济学人-Taxing times-安倍经济学,“与税斗,时进时退”。
经济学人读译Time for a... 4页 免费 经济学人-Time is not m... 3页...place in October 2015, not long before a general election due by 2016. ...
economist经济学人文摘(中英双语):No sign of a rainbo...
economist经济学人文摘(中英双语):No sign of a rainbow economist经济学人文摘...And, sure enough, as at any time of crisis, some in the military and ...
2018考研英语:阅读经济学人文章(一)
2018考研英语:阅读经济学人文章(一)_研究生入学考试_高等教育_教育专区。凯程...a longtime leader of Bavaria, with Germany's Nazi past in mind.Such a ...
economist经济学人文摘(中英双语):A mixed blessing_免...
3页 免费 economist经济学人文摘(中... 4页 免费...A mixed blessing 喜忧参半 The cheaper euro will...26% in America in the first four months of ...
2012年3月经济学人文章(英汉双语对照)
2012年3月经济学人文章(英汉双语对照)_英语学习_外语...a time of high unemployment, no one wants to ...了石油;据该公司称,正式开采预计将于 2016 年开始...
2016考研英语 长难句解析11年新题型
考研交流学习群【198233974】 本文选自 2010 年 2 月 25 日《经济学人》,...have a grounding in the basic canon of ideas,that 引导定语从句,修饰 idea...
赏析版2013年3月经济学人文章(英汉双语对照)汇集(1)
年 3 月经济学人文章(英汉双语对照)汇集 Contents ...sub-absolute-zero temperature for the first time....they kept the individual atoms in a lattice arrange...
更多相关标签: