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.
The earliest signs of an HIV infection are flu-like symptoms that include fever, rash, swollen lymph nodes, headache and fatigue, according to Mayo Clinic. These symptoms usually appear between 30 and 60 days after a person has been infected, and they may be mistaken for another viral infection. Continue Reading.