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Tuberculosis is spread from one person to the next through the air when people who have active TB in their lungs cough, spit, speak, or sneeze. [1] [9] People with latent TB do not spread the disease. [1] Active infection occurs more often in people with HIV/AIDS and in those who smoke. [1]
If and when a person’s immune system becomes compromised, like with AIDS or with aging, the Ghon focus can become reactivated, and the infection can spread to either one or both upper lobes of the lungs, it’s thought that this is because oxygenation is greatest in these areas, and TB being an aerobe, prefers areas of greater oxygenation.
Tuberculosis generally affects the lungs, but can also affect other parts of the body. [26] Active or symptomatic tuberculosis is spread from person to person through the air through bacterium spores that are released into the air following a cough or sneeze.
Tuberculosis can also spread through the blood from the primary focus to elsewhere in the abdomen. Abdominal solid organs, kidneys, lymph nodes and peritoneum can be affected this way. [ 2 ] Tuberculosis is also reported to spread to the peritoneum directly from adjacently situated infected foci, such as from the fallopian tubes, adnexa, psoas ...
Persons with HIV and latent tuberculosis have a 10% chance of developing active tuberculosis every year. "HIV infection is the greatest known risk factor for the progression of latent M. tuberculosis infection to active TB. In many African countries, 30–60% of all new TB cases occur in people with HIV, and TB is the leading cause of death ...
As one type of tuberculosis infections, individuals can’t entirely prevent Pott’s Disease, but we are able to take steps to reduce the risk of TB (tuberculosis) infection by avoiding prolonged, close contact with someone who has an active TB (tuberculosis) infection and getting tested regularly for TB (tuberculosis) if you're at higher risk ...
Airborne diseases can be transmitted from one individual to another through the air. The pathogens transmitted may be any kind of microbe , and they may be spread in aerosols, dust or droplets. The aerosols might be generated from sources of infection such as the bodily secretions of an infected individual, or biological wastes.
If the infection is treatable, helping prevent reinfection of the originally infected patient; Learning about the epidemiology of a disease in a particular population; Being a tool in multifaceted prevention strategy to effectively curb the spread of an infectious disease. Visual depiction of disease spread with and without contact tracing.