DTuberculosis, or TB, spreads through the air, infects(感染) billions of people andis increasingly difficult to treat. While it might sound like something from a sci-fimovie, itis unfortunately all too realToday, people in the developed world usually see the symptoms of TB - fever,tiredness...
The emergence of MDR-TB occurs initially through natural selection during first-line treatment of DS-TB but subsequently spreads through person-to-person transmission. Our model incorporates a simplified interaction of HIV and TB co-epidemics (Fig. 1B) with the annual incidence of HIV fitted to ...
TB infection is when a person is carrying TB bacteria, but their immune system is able to keep the infection under control. It is also called latent tuberculosis. People with TB infection do not show symptoms of TB and can’t spread it to others. However, if left untreated, it may devel...
When a person is infected with M tuberculosis, the infection can take 1 of a variety of paths, most of which do not lead to actual TB. The infection may be cleared by the host immune system or suppressed into an inactive form called latent tuberculosis infection (LTBI), with resistant hos...
People who breathe infected air from a TB patient can become infected with the tuberculosis bacteria. However, most people with active tuberculosis do not expel very many TB bacteria. So, the spread of the disease usually does not happen unless a person
Tuberculosis is a potentially serious infection caused by Mycobacterium tuberculosis bacteria that are spread mainly through the air from one person to another. TB usually infects the lungs, but can also cause symptoms that affect the whole body. ...
I’ve heard when one person has TB in the household then it spreads to the entire family. If the person has children, then the children may also get it.” —Community Resource Person “My mother had TB and then my three-year old daughter caught it as well. Now they are completely ...
Although a variety of personal traits influence weight gain, obesity is socially contagious, moving from person to person through networks of friends and relatives, a new investigation finds. The study, the first to examine how social ties influence the development of obesity over time, finds that...