Surge in walking pneumonia affects these high-risk groups, says Dr. Marc Siegel
Cases of walking pneumonia are spiking across the U.S., according to the CDC. Dr. Marc Siegel speaks with Fox News Digital about common sources, symptoms and treatments.
What Happens When AQI Hits 999, Is There Any Measurement Beyond That? Explained
When the AQI reaches 999, it is considered an emergency situation. In most cases, the AQI never exceeds 500, even in places ...