The flu and pneumonia are both serious illnesses, but each affects the body differently. The flu is a highly contagious virus that is a common cause of pneumonia, which is an infection in the lungs that causes the air sacs to fill with pus or liquid. Premier HealthNet’s Dr. Joshua Ordway explains the difference between the flu and pneumonia. Find more answers to frequently about cold and flu at [ Ссылка ].
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