A transmission electron micrograph shows the Zika virus. Reuters/Centers for Disease Control and Prevention (Handout/Reuters)

Ever ask yourself what's the latest on viruses?

Don't blame yourself if you haven't. It's easy to forget that the tiny particles, which hijack host organisms and use them to replicate, even exist. If you are sick, you are more likely to pay attention: Viruses are responsible for infections including the common cold, pneumonia and hepatitis.

Enter This Week in Virology, a podcast that makes it worth considering viruses more often. It's hosted by Vincent Racaniello, a Columbia University professor, along with other virology experts.

Together, the team picks apart the latest news in virology and discusses big-name viruses, such as Zika, HIV and influenza. The show sheds light on a field that's expanding all the time and that presents difficult questions to scientists.

One recent episode, "Call me fish meal," tackles Bodo saltans. This giant virus — the largest ever seen — was first found in a freshwater pond in British Columbia. It infects a flagellated eukaryote, a hairy-looking microorganism that is common in water. One of just a handful of known giant viruses, Bodo saltans is challenging what scientists think they know about the infectious agents. The podcast gets into why, offering a fascinating look into the leviathan and the outsize mysteries it presents.

Viruses themselves aren't the only focus of the podcast: So are the people who spend their lives studying them. They appear to discuss their careers and their most pressing research challenges.

Rounding out the show are regular tidbits that would be of interest to any science buff: Books, websites, cool videos and news developments are covered.

The show can get technical, but if you're into viruses — or into learning how scientists approach the mysteries of their field — it's a must-listen.