What is Influenza (the Flu)? There are four types of influenza virus. Influenza A is the most common, followed by influenza B. Both are highly contagious, and their symptoms are similar. Influenza, also known as the flu, is a viral respiratory illness that is most prevalent during fall and winter months. The influenza virus causes infections of the nose, throat, and lungs. It spreads easily b...

A Growing Epidemic Allergies are the 6th leading cause of chronic illness. In 2018, 7.7 percent of adults and 7.2 percent of children were diagnosed with hay fever. The most common serious allergic life-threatening reactions are medicines, food, and insect stings. The annual cost of allergies exceeds $18 billion. In 2018, 9.2 million children had skin allergies. Severe drug reaction...