Influenza or “flu” is caused by a contagious virus that infects your lungs and respiratory system. There are different strains of the influenza virus that are passed around the world. Symptoms of the flu may be mild or severe, and include fever, dry cough, sore throat, muscle aches and generally feeling tired and sick. Will the virus be worse this year since we are not wearing masks? Influenza viruses are spread by droplets that enter the respiratory system through our nose and mouth. Washing your hands is the best defense, but masks also reduce the likelihood of many types of respiratory (lung) infections. As the seasons change and we move indoors, viruses become more robust (cold, drier weather keeps them infectious longer) and that is why more people get sick during the winter months. If I get the flu vaccine, [...]