Zika has been infecting people for centuries and was first recognized in Uganda, nearly 70 years ago.

Despite its long history with humanity, we’ve seen the most progress for a vaccine over the past year.

This is due to a “gold rush” by pharmaceutical companies to find immunization. This race for a Zika solution started with an offer from the U.S. government to shift money to companies for vaccine research. Many other worldwide governments followed suit, offering financial programs to companies researching a Zika vaccine.

Vaccines usually take time to develop. Between research, development and trials, the process can take years and even decades.

Somewhat surprisingly though, Zika is proving ideal for vaccine research.

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Pneumonia isn’t just the cold.

You aren’t more likely to catch the virus if you go outside during the winter without a coat.

People 65 years or older aren’t the only ones who can catch pneumonia.

The myths about pneumonia have been debunked, but one fact is important. Pneumonia sends about one million Americans to the hospital and 50,000 deaths every year. Here’s what you do need to know about the deadly virus:

What is pneumonia?

A bacteria gets into the lungs, causing the air sacs to fill with pus and get inflamed. The body then struggles to absorb and exchange oxygen.

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The year isn’t over yet, but worldwide explorers already decided for the rest of us.

There were some places to avoid and some that were must-sees in 2016.

Those popular destinations offered a variety of reasons to visit.

Unbeatable beaches surrounding tight-knit communities. Bustling metropolitan areas filled with businesspeople and locals alike. Maybe even some ancient ruins that can only be reached from a world-renowned hiking trail.

Whether it was for a business trip or some rest and relaxation, here were the five best travel destinations of 2016:

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The smallpox vaccine is credited to English doctor Edward Jenner.

His reputation is well-earned, as he studied the disease and ways to prevent it for decades.

Jenner first used his vaccine by exposing an eight-year-old boy to a cowpox-infected needle. Although the boy suffered some symptoms from the cowpox, he was immune to smallpox.

But, a man tried this method years earlier despite spending his life trying to eradicate something far different: witches.

Cotton Mather was a popular minister and scholar in late 17th century Boston. The son of Increase Mather, another prominent minister, the duo were well-known advocates for the Salem witch trials.

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