Each subunit contains an iron containing pigment (heme) and a protein (globulin). There are two types of subunits, alpha and beta. Each gram of hemoglobin can carry 1.34 ml of oxygen. The oxygen carrying ability of blood is directly proportional to its hemoglobin concentration.
Flu (Influenza) The flu is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness. It can also cause death in severe cases. The flu can affect your lungs when you have asthma. It can cause inflammation (swelling) and narrowing of your airways.
Most people who have the flu (influenza) have a mild illness and don't need to see a doctor. Common flu signs and symptoms include:With some rest and self-care measures at home, the average healthy person can expect to get better within about two weeks.However, some people are at greater risk of serious flu-related complications and should see a doctor.If you or someone you're caring for is at high risk of flu-related complications and you suspect the flu, call the doctor. For those at high ...