Fewer children in the United States are getting vaccinated. That’s bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible, irrational decisions. Instead of doing that, let’s use science to understand why this is happening in the first place. Continue reading
The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does this seemingly counterintuitive process work? Kelwalin Dhanasarnsombut details the science behind vaccines. Continue reading
In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have still managed to improve the outlook for those infected. We’re conducting a survey of our viewers! Continue reading
In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated. Continue reading
All year long, researchers at hospitals around the world collect samples from flu patients and send them to top virology experts with one goal: to design the vaccine for the next flu season. But why do we need a new one every year? Continue reading
For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. Continue reading
High school science teacher Tyler DeWitt was ecstatic about a lesson plan on bacteria (how cool!) — and devastated when his students hated it. The problem was the textbook: it was impossible to understand. He delivers a rousing call for science teachers to ditch the jargon and extreme precision, and instead make science sing through stories and demonstrations. (Filmed at TEDxBeaconStreet.)
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In the more than three decades since researchers started seeing the first signs of AIDS, millions have lost their lives hoping modern medicine might produce a cure in time. While a cure still eludes the brightest minds, treatment for people who have AIDS (acquired immune deficiency syndrome) has come a long way.
For instance, someone who suspects they are at risk today can take a daily pill, Truvala, also known as PrEP, that proactively minimizes the likelihood he will contract HIV, the virus that causes AIDS. Projects to reduce the spread of AIDS in the United States and Africa have made excellent headway thanks to a collaboration between international organizations led by the U.S. government, the United Nations, the World Health Organization, and partners around the world.