Parents may first become aware of ASD symptoms in their child around the time of a routine vaccination. This has led to unsupported and disproven theories blaming vaccine "overload", a vaccine preservative, or the MMR vaccine for causing autism spectrum disorder. In 1998, British physician and academic Andrew Wakefield led a fraudulent, litigation-funded study that suggested that the MMR vaccine may cause autism. This conjecture suggested that autism results from brain damage caused either by the MMR vaccine itself, or by thimerosal, a vaccine preservative. No convincing scientific evidence supports these claims. They are biologically implausible, and further evidence continues to refute them, including the observation that the rate of autism continues to climb despite elimination of thimerosal from routine childhood vaccines. A 2014 meta-analysis examined ten major studies on autism and vaccines involving 1.25 million children worldwide; it concluded that neither the MMR vaccine, which has never contained thimerosal, nor the vaccine components thimerosal or mercury, lead to the development of ASDs. Despite this, misplaced parental concern has led to lower rates of childhood immunizations, outbreaks of previously controlled childhood diseases in some countries, and the preventable deaths of several children.
Pesquisar
Chart
Categorias
- Arts
- Business
- Computers
- Jogos
- Health
- Início
- Kids and Teens
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Leia Mais
Спирит Непокорный. Spirit Untamed. (2021)
Лаки Прескотт — юная бунтарка, совсем как ее мама, легендарная бесстрашная наездница,...
How the AD/AS model incorporates growth, unemployment, and inflation
Key points
The aggregate demand/aggregate supply, or AD/AS, model is one of the...
Тайна Коко. Coco. (2017)
12-летний Мигель живёт в мексиканской деревушке в семье сапожников и тайно мечтает стать...
Атлетка А: Скандал в американской гимнастике. Athlete A. (2020)
История одного из самых крупных скандалов в профессиональном спорте в США. Врач сборной США по...
FOX 29, Live TV. Philadelphia USA
Fox 29 — which may also be called Fox News 29, or WTXF — has a great live stream....