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.
Less common HIV symptoms in women in this stage include: 1  Swollen lymph nodes. 2  Nausea. 3  Fatigue. Ulcers in the mouth.  Vaginal infections, like yeast infections and bacterial 1  vaginosis. Night sweats. 2  Vomiting. Muscle aches and joint  pain.
HIV usually causes flu-like symptoms about two to four weeks after infection. This period of time is short and is called acute infection. The immune system brings the infection under control, leading to the latency period. The immune system cannot completely eliminate HIV, but it can control it for a long time.