COLDS, FLU, and other respiratory infections affect hundreds of thousands of people each year and peak in the fall and winter. They’re brought on by microbes, including bacteria, viruses, and, rarely, fungi.
Fortunately, our bodies are equipped with many defenses, including the protective barrier of our skin, the mucus and cilia in our respiratory tracts, the acid in our stomachs, and the healthy bacteria in our digestive tracts. Our lymph nodes trap microbes that are then destroyed by white blood cells.
Some pathogens can be very dangerous, especially in older people with weakened immune systems. And more bacteria are becoming resistant to antibiotics. If your health care provider prescribes an antibiotic, ask whether it’s necessary.
To protect yourself and limit the spread of germs, simply wash your hands with regular…
