transmission and acquisition of nontuberculous mycobacteria outbreak investigation (transmit)

Conditions: Nontuberculous Mycobacterial Pulmonary Infection; Outbreak Investigation; Healthcare Associated Infection; Mycobacterium Infections

Summary: the goal of this observational study is to facilitate standardized nontuberculous mycobacteria (ntm) outbreak investigations in healthcare centers. the main questions it aims to answer are: * are respiratory ntm isolates identified as having membership in a suspected healthcare outbreak highly related based on whole genome sequencing? * does epidemiologic investigation support healthcare-associated patient-to-patient ntm transmission? * does healthcare environmental sampling support healthcare-associated ntm acquisition? if healthcare-associated ntm outbreaks are suspected, participants identified as having membership in a cluster of highly-related ntm infections will complete a demographic questionnaire.

this study is a parallel multi-site study of people cared for in a healthcare center who are identified with highly similar respiratory nontuberculous mycobacteria (ntm) isolates. the advanced diagnostic laboratories (adx) biorepository collects non-standardized, voluntarily submitted respiratory isolates from healthcare centers throughout the u.s. for the purpose of culture, molecular identification, and wgs. the transmission and acquisition of nontuberculous mycobacteria outbreak investigation (transmit) study is designed to provide resources to systematically collect data to perform an outbreak investigation on people in a suspected healthcare-associated ntm outbreak. respiratory ntm isolates will undergo wgs to identify infections that are highly related and falling into clusters in order to determine if the source of ntm infection may be a healthcare-associated outbreak. the investigators integrated clinical and epidemiological research methods to adapt a cdc standardized, and validated healthcare-associated infection outbreak investigation toolkit to retrospectively collect data for suspected healthcare-associated ntm outbreak investigations. through consultation with subject matter experts and scientific literature review, the investigators modified the cdc healthcare-associated infection outbreak investigation abstraction form, designed to be utilized in local investigations of common healthcare-associated infections to develop the healthcare-associated links in transmission of ntm (halt ntm) study outbreak investigation abstraction toolkit. the halt ntm toolkit is a health insurance portability and accountability act (hipaa) compliant, web-based, branching logic questionnaire that uses integrated clinical and epidemiological research methods to perform an epidemiologic investigation to identify overlaps in space and time with mapping of visits and source(s) of care among patients with highly similar ntm isolates in a center. additionally, the toolkit assesses detailed center-specific ip\&c measures utilized the healthcare system. utilizing the halt ntm toolkit, the transmit study facilitates a standardized, stepwise process by which healthcare centers perform an internal epidemiologic evaluation of patients identified as part of an ntm cluster. since clustered ntm isolates could originate from a shared healthcare source, dust and water biofilms from the healthcare environment are collected. ntm are recovered, identified, and sequenced as described to determine if the respiratory ntm strain genotype is similar to those recovered from the healthcare environment. through a collaborative agreement, transmit is available to u.s. healthcare centers to conduct a standardized, independent, confidential ntm outbreak investigation.

Eligibility criteria:
inclusion criteria: * male or female participant of any age who has a history of ntm or a first positive ntm culture collected as part of routine clinical care from expectorated sputum, induced sputum and/or bronchoalveolar lavage. exclusion criteria: * no ntm respiratory culture

Keywords: epidemiology nontuberculous mycobacterial pulmonary infection outbreak investigation healthcare associated infection infection transmission infection acquisition