Since TB patients with multiple episodes of treatment do not meet the eligibility for free treatment in China, and there are no standardization of TB medical services for retreatment failed patients, this population become a 'neglected' group, although from the perspective of public health this group could be a long-standing source of the spread of M/XDR-TB.
The primary source of the spread was the sharing of needles to inject opioid drugs.
Everything you touch is a source of some pathogen, including and especially the payment keypad at your local pharmacy which I am convinced is the source of the spread of 98% of communicable disease.
This ancient city, which legend says is more than 2,500 years old, is where Buddhism began in Sri Lanka and the source of its spread in its Theravada form to Burma, Thailand and Laos.
They originated as weak spots that were the sources of the spreading eutectic gold-silicon circles; when the circular eutectic was ruptured the squares filled with the same eutectic, which remained at the centers of the denuded zones.
"Surfaces often touched by health care workers during routine patient care are commonly contaminated and may be a source of nosocomial spread". Researchers tested surfaces in 50 hospital rooms between October 2008 and January 2009 for MDR-AB, MSNBC reported.
Thus, the marginal zone may contribute to the pathogenesis of scrapie in several ways, as a compartment where neuroinvasion may occur and as a source of haematogenous spread of infection.
In conclusion, our study demonstrates that, allogeneic iPSC transplantation into the heart can cause in situ tumorigenesis in immunocompetent recipients, and that the cells leaked from the beating heart likely serve as a source of tumor spread.
Nasopharyngeal carriage is also the source of pneumococcal spread to other individuals mainly in intimate and overcrowded conditions.
CTCs are considered to be the active source of metastatic spread; however only a few of these cells are capable of forming metastatic deposits in distant organs.
