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.
The majority of healthy adults diagnosed with the flu (novel H1N1 or seasonal flu) have had abrupt onset of fever greater than 100.0 degrees Fahrenheit, along with one of the following symptoms. â¢ Muscle aches are more severe with influenza than with colds, and improve within 3-5 days. â¢ Cough: a dry cough, sometimes' severe for 3-5 days, is common with the flu. A milder, but improving cough may linger another 2-4 weeks. â¢ Headache: a severe generalized headache is common with the flu, and is milder with colds. â¢ Fatigue: is most severe during the acute febrile stage of the flu, but can sometimes' linger another several weeks. â¢ Sore throat, runny nose, and nasal congestion are generally milder with influenza, and are more typical features of the common cold.