Although it is rarely fatal in wealthy countries, pneumonia kills more children each year than any other infectious disease. This program explains why the pneumococcus bacterium has run rampant in the underdeveloped world, and explores...

Howcast - Learn the top myths and facts about human papillomavirus (HPV) from sexpert Jane Bogart in this Howcast video.

Howcast - Learn about the HPV vaccine, which helps protect against the human papillomavirus, from sexpert Jane Bogart in this Howcast video.

Howcast - Learn about the connection between the human papillomavirus (HPV) and cancer from sexpert Jane Bogart in this Howcast video.

Howcast - Learn about the connection between the human papillomavirus (HPV) and genital warts from sexpert Jane Bogart in this Howcast video.

Howcast - Mild sprains or strains are among the most common sports injuries. In most cases, you can treat these conditions at home using the following guidelines.

Our understanding of DNA as the hereditary material emerged gradually, challenging the early belief that proteins, not DNA, were responsible for heredity. A pivotal moment came in 1928 when Frederick Griffith discovered bacterial...

After 40 years of trying, why don’t we have an HIV vaccine? Did you know that even without a vaccine, we have antiviral medication that is 99 percent effective at preventing HIV? So why isn’t that good enough? The U.S. and the world have...

What is cholera exactly? Believe it or not, this disease isn't gone, it's still an issue in various parts of the world. It's caused by Vibrio cholerae, and in particular two serotypes of this bacterium. Let's get some details!

This video discusses the issue of antibiotic resistance in bacteria and its evolution through natural selection. It explains genetic variation and the development of resistance in bacteria, leading to the spread of superbugs like MRSA....

This laboratory is a control freak's dream come true! Welcome to the North Carolina State University (NCSU) Phytotron, a singular facility for growing plants under various combinations of strictly controlled environmental conditions....

A conversation with Johnathan Galazka, a scientist in the Space Biosciences Research Branch at NASA’s Ames Research Center in Silicon Valley.

Kids learn all about the String Family with this fun song. Even playing along with rhythms!

Gonorrhea is the second-most common sexually transmitted infection, or STI, in the world. What is the pathogen responsible for this infection, how was it discovered, and precisely what does it do in the body? Let's answer these questions...

As COVID continues to spread around the world worrying variants are beginning to emerge. These primary variants of concern have emerged from Britain, South Africa & Brazil but now they can be found in an estimated 100 countries. So in...

MOT 1948: REPUBLIC OF CHINA: LIVESTOCK: WS Man feeding domestic hens & roosters in fenced yard, VS FAO (United Nations Food & Agriculture Organization) imported chickens from Australia, taking rooster out of cage, adding to stock yard....

We just finished learning about how the antibiotics revolution got started, with the sulfa drugs. Now let's move on to the classes of antibiotics that were discovered in the middle of the 20th century, the penicillins and the...

What is cholera exactly? Believe it or not, this disease isn't gone, it's still an issue in various parts of the world. It's caused by Vibrio cholerae, and in particular two serotypes of this bacterium. Let's get some details!

Human papillomavirus, or HPV, is a virus that many people are familiar with, as it is unbelievably prevalent in the human population. But there are many strains that do different things in the body, as they invade different types of...

This clip looks at some of the beneficial and harmful aspects of transgenic plants.

Staphylococcus aureus is the bacteria responsible for what we commonly refer to as a staph infection. They are extremely common, but they are also developing antibiotic resistance at an alarming rate. Let's take a look at these now.