Cellular and microscopic biology allow scientists to study cells and microorganisms. Cellular biology is the study of cells, including their structure and function. Microbiology is the study of microorganisms, which include algae, bacteria, and viruses.

How the Human Microbiome Project Works

You like to think of yourself as an individual. But the truth is there's a huge microbial party going inside and outside your body right now. And the folks from the Human Microbiome Project want to know what those microbes are up to.

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  • 10 Misconceptions About the Flu

    10 Misconceptions About the Flu

    Lots of Americans believe that getting the flu is no worse than getting a cold. Or that the flu vaccine can give them flu. We separate truth from fiction. See more »

  • 10 Oldest Known Diseases

    10 Oldest Known Diseases

    You won’t find some of history’s biggest killers on this list, but you will find at least one disease that will make you want to bite something and another that might make you break out in "elevated pustules." Curious yet? See more »

  • 10 Weirdest Sources for Antibiotics

    10 Weirdest Sources for Antibiotics

    Worried that we’re running out of effective antibiotics? Never fear. Scientists are plundering cockroach brains and other surprising sources to create new lifesaving medications. See more »

  • A Germ by Any Other Name: 'Stomach Flu' and Other Medical Misnomers

    A Germ by Any Other Name: 'Stomach Flu' and Other Medical Misnomers

    Most of us know what causes a case of the Mondays or tennis elbow -- Mondays and racquet sports -- but what about other conditions and illnesses? You can't always judge a disease by its name. Do you know what causes the stomach flu? See more »

  • Does your body really replace itself every seven years?

    Does your body really replace itself every seven years?

    That bully who tormented you in school might not seem to have changed much when he put you down at the 10-year reunion. But he's almost an entirely new person, at least on the outside, thanks to bodily regeneration. See more »

  • Has a video game cured HIV?

    Has a video game cured HIV?

    Molecular biology isn't all fun and games -- except when it is. How did a bunch of gamers handily solve a decade-old problem in three weeks flat? See more »

  • How AIDS Works

    How AIDS Works

    Many world leaders agree that we're losing the war on AIDS. AIDS is one of the deadliest human diseases ever -- worldwide, it claims approximately 5 lives every minute of every day. Learn how the AIDS virus attacks the body. See more »

  • How Biofilms Work

    How Biofilms Work

    Biofilms form when single microorganisms attach to a hydrated surface and undergo a "lifestyle switch." But why should we care about biofilms? See more »

  • How Bird Flu Works

    How Bird Flu Works

    If you've kept up with the news lately, you've probably heard dire warnings about avian flu, or bird flu. In this article, we'll review the basics of how viruses and influenza work, and we'll learn the answers to these and other questions about avian flu, including whether it is likely to cause a global flu epidemic. See more »

  • How can light kill viruses?

    How can light kill viruses?

    Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future. See more »

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