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.
Severity of the symptoms and length of the infection dependson the individual. The temperature you get with flu usuallygoes down within 48 hours.The worst flu or cold symptoms will be over in 4-5 days butcomplete recovery can take up to 10 days, and sometimeslonger.