To determine the correct air/fuel mixture and the correct ignition timing, the PCM must know the atmospheric (BARO) pressure. If the PCM is to compensate for changes in altitude or weather, it must have an input signal that reflects these changes in atmospheric pressure.
As of 2009, XDR TB has not appeared in Indonesia, but it still remains a huge threat.i The fact that HIV positive individuals are more susceptible to TB infection is another difficult obstacle in containment. In fact, more than 50% of individuals living with HIV die from TB infection.
HIV weakens a person's immune system so it can't fight the TB germs. In the United States, because of stronger control programs, tuberculosis began to decrease again in 1993, but remains a concern. Many strains of tuberculosis resist the drugs most used to treat the disease. People with active tuberculosis must take several types of medications for many months to eradicate the infection and prevent development of antibiotic resistance.