In a close-ended manometer, one end of the manometer is attached to the high-pressure gas, and the other has a vacuum of gas instead of being open to the air. Barometers also fill this function, but measure only atmospheric gases.
The most common HIV symptoms in women in this stage include: 1  Body rash. 2  Fever. 3  Sore throat.  Severe headaches.
At first, a person with HIV will not have any visible symptoms. A few weeks after infection, many people have flu-like symptoms, which then disappear after a while. These symptoms can include fever, headache, tiredness, and enlarged lymph glands in the neck and groin area. Other people infected with HIV may have no symptoms.