Underlying causes of low blood pressure. Low blood pressure can occur with: Prolonged bed rest. Pregnancy. During the first 24 weeks of pregnancy, itâs common for blood pressure to drop. Decreases in blood volume. A decrease in blood volume can also cause blood pressure to drop. A significant loss of blood from major trauma, dehydration or severe internal bleeding reduces blood volume, leading to a severe drop in blood pressure.
Influenza, commonly called the flu, is caused by viruses that infect the respiratory tract. Flu symptoms include fever, chills, cough, sore throat, headache, muscle aches, and. fatigue. The incubation period for flu is about one to four days. Flu is contagious, and symptoms may last up to seven to 14 days.
These precautionary measures could reduce the possibility of infection with avian and human influenza viruses. Avian Flu Symptoms for Humans: All poultry workers should know the signs and symptoms of avian influenza virus infection in humans so that measures can be taken for immediate treatment. The signs and symptoms may include fever, cough, sore throat, conjunctivitis (eye infections), and muscle aches. Infection with avian influenza viruses can also lead to pneumonia, acute respiratory distress and other severe and life-threatening complications.