Epidemiology And Prevalence

Most of the NTM have been isolated from water and soil,[1] e.g., species of the Mycobacterium avium complex, Mycobacterium marinum, Mycobacterium kansasii, My-cobacterium xenopi, Mycobacterium simiae, and rapid growers (Table 1).[2] Most common NTM associated with nosocomial disease are Mycobacterium fortuitum, Myco-bacterium chelonae, and Mycobacterium abscessus. M. xenopi requires a temperature of 28 °C or more to grow and has been recovered from hot water and hot water taps within hospitals.[3]

Airborne environmental NTM may result in respiratory disease, whereas ingestion may be the source for cervical lymphadenitis and, in AIDS patients, may lead to a disseminated disease. Soft tissue and skin infections are likely a result of direct inoculation of NTM. It is not known whether NTM disease has a latent period or not.

Because NTM disease is not notifiable, the worldwide estimates of incidence and prevalence may not be accurate. A study conducted by Centers for Disease Control and Prevention (CDC, Atlanta, GA 30333, U.S.) from 1991 to 1992[4] demonstrated a dramatic increase in numbers of NTM, especially M. avium complex.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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