Cold and flu season is here. According to the Mass. Department of Health’s latest report, flu activity has increased from moderate to high in the state. Officials are urging people to get their flu shot if they haven’t already. Carolee McGrath sat down with Dr. Estaban Delpilar-Morales, who works in the Infectious Disease department at Baystate Medical Center in Springfield, to find out more about this year’s cold and flu this season as well as pneumonia, which can result from the illnesses.