Health | Diseases & Conditions | Infectious Diseases

Bird flu, malaria, plague and West Nile virus are infectious diseases we've all heard of. Find information on these epidemics and more in this section.

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HIV/AIDS

What are the definitions of HIV and AIDS terms? Learn about the symptoms and spreading of HIV and AIDS.


10 Ways That Doctors Treated Infections Before Antibiotics

10 Ways That Doctors Treated Infections Before Antibiotics

Scientists are now taking a second look at treatments that were popular before the discovery of antibiotics. Learn all about them at HowStuffWorks. See more »

How Genetic Discrimination Works

How Genetic Discrimination Works

How common is it for schools, jobs and more to turn people away based on DNA? Common enough! Learn about genetic discrimination at HowStuffWorks. See more »

What's Wrong With My Co-worker? Quiz

What's Wrong With My Co-worker? Quiz

Your co-worker could be suffering something serious. We'll give you the symptoms, and you tell us what the problem is in this quiz at HowStuffWorks. See more »

How Zika Virus Works

How Zika Virus Works

So just how bad is the Zika virus outbreak, and is it really connected with cases of microcephaly? Learn more about at HowStuffWorks. See more »

How do diseases jump from infecting animals to infecting humans?

How do diseases jump from infecting animals to infecting humans?

Many diseases jump from infecting animals to infecting humans, sometimes with deadly consequences. See what you need to know about the spread of disease. See more »

Why are highly contagious diseases kept in labs?

Why are highly contagious diseases kept in labs?

Highly contagious diseases are often kept in labs, and some researchers insist it's with good reason. Find out why contagious diseases are kept in labs. See more »

Is the plane that transports Ebola patients completely safe?

Is the plane that transports Ebola patients completely safe?

Ebola patients transported out of Africa don't fly on regular commercial or private planes. Find out if the Ebola patient plane is safe at HowStuffWorks. See more »

Does Ebola affect people who are Rh-negative?

Does Ebola affect people who are Rh-negative?

Can you get Ebola if you're Rh-negative? Learn about the connection between Ebola and being Rh-negative at HowStuffWorks. See more »

5 Diseases That Don’t Spread the Way We Used to Think

5 Diseases That Don’t Spread the Way We Used to Think

Some illnesses we have gotten wrong over the years. See five diseases that don't spread the way we used to think to learn more. See more »

Will there be new STDs in the future?

Will there be new STDs in the future?

Are new STDs in our future? Find out if new sexually transmitted horrors are in the making at HowStuffWorks. See more »