A retrospective on infection control. Part 2: twentieth century--the flame burns

Biomarkers of end of shift exposure to disinfection byproducts in nurses

Increased disinfectant use commonly takes place in hospitals and other health care settings. A cross-sectional study among active nurses in two Cypriot public hospitals (n=179) was conducted to examine the prevalence of exposure to disinfection byproducts (DBPs), such as trihalomethanes (THMs) using both self-reported information and biomarker measurements. The objectives of this study were to: i) quantify the magnitude and variability of occupational exposure to disinfectants/DBPs in nurses, ii) generate job exposure matrices (JEM) and job task exposure matrices (JTEM) for disinfectants, and iii) assess the major determinants of urinary THMs in nurses. End of shift urinary total THM values showed high variability among the nurses, but did not differ between hospitals. The disinfectant group of alcohols/phenols was used by >98% of nurses, followed by octenidine (82%), iodine and chlorine (39%, each), chlorhexidine (25%), formaldehyde (12%), hydrogen peroxide (11%), and peracetic acid/ammonia/quaternary ammonium compounds (QACs), all being <8% each. Chlorine use during the past 24hr was associated with significantly (p<0.05) lower brominated THMs (BrTHMs) after adjusting for age, gender and BMI, while a positive association was shown for TCM and the sum of all THMs (TTHMs), albeit not significant. Nurses were exposed to nearly double the levels of TTHMs and BrTHMs (median and IQR, 1027 [560, 2475] ng/g and 323 [212, 497] ng/g, respectively) when compared to those of the general population (552 [309,989] ng/g and 152 [87,261] ng/g, respectively). This was the first occupational health dataset reporting measurements of biomarkers of end of shift exposures to disinfectants/DBPs.

Infection control through the ages

To appreciate the current advances in the field of health care epidemiology, it is important to understand the history of hospital infection control. Available historical sources were reviewed for 4 different historical time periods: medieval, early modern, progressive, and post-World War II. Hospital settings for the time periods are described, with particular emphasis on the conditions related to hospital infections.

Expanding infection preventionists' influence in the 21st Century: looking back to move forward

The 5th Decennial International Conference on Healthcare-Associated Infections took place in Atlanta in March 2010. The conference was unprecedented in the variety, depth, and breath of scientific sessions and research abstracts informing the practice of health care epidemiology and infection prevention. However, noticeably absent were topics or related discussions focused on essential leadership skills and influence strategies required to implement the science into practice.

Status of infection surveillance and control programs in the United States, 1992-1996. Association for Professionals in Infection Control and Epidemiology, Inc

BACKGROUND

Nosocomial infections have been recognized as a source of morbidity and mortality throughout the world for several decades. In the United States, an estimated 2.1 million nosocomial infections occur annually in acute care hospitals alone. Infection surveillance and control programs (ISCPs) play a vital role in addressing this problem, but no national studies have described the status and composition of these programs since the 1970s.

METHODS

In January 1997, a voluntary survey was sent by mail to members of the Association for Professionals in Infection Control and Epidemiology, Inc. Only one response per facility was requested. The survey asked for information for the years 1992 to 1996 (study period), and questions pertained to characteristics of the health care facility in which the respondent worked, characteristics of the ISCP and its personnel, and the overall level of administration support for infection control activities.

RESULTS

Completed questionnaires were received from personnel at 187 health care facilities located in 40 states and the District of Columbia. The majority (76.5%) of responding facilities were nongovernment owned, and 57.2% were classified as general acute care facilities. The number of licensed beds at these facilities remained stable throughout the study period, but all other measures of facility size and activity (eg, number of patient days and number of nurses) decreased by as much as 28.9%. In 1992, ISCPs were most likely to be organizationally located in the Nursing Department, but by 1996, many had been transferred to departments of Medical Records, Quality Assurance, or Risk Management. Throughout the course of the study period, the number of facilities performing surveillance for health care-associated infections in outpatient settings increased by 44.0%, from 100 to 144. In 1996, only 47.6% of facilities had a hospital epidemiologist (HE), and HEs devoted a median of 15% or less of their time to infection control activities. For the most part, HEs were trained in infectious diseases, and few had certification in infection control. Infection control professionals (ICPs) were much more common than were HEs (ICPs were reported at 97.9% of respondents' facilities in 1996), and they spent the majority (80% in 1996) of their time on infection control activities. During the course of the study period, increasing numbers of facilities had ICPs who had certification in infection control. Furthermore, most respondents did not report a change over time in the level of administration support for infection control activities.

CONCLUSIONS

Health care delivery has changed dramatically during the past 20 years. This study presents an updated description of ISCPs in the United States. Our results illustrate several changing parameters, such as departmental shifts and increased outpatient surveillance, that reflect adjustments in health care priorities during the study period. As the transformation of the health care system continues, continued evaluation of the status of ISCPs on a national level will be necessary. Diligent monitoring, proactive measures, and collaboration between infection control organizations and government agencies will be vital for the prevention and control of health care-associated infections in the future.

The fifth evolutionary era in infection control: interventional epidemiology

A historical review of infection control over the last 4 decades indicates that the field has evolved from being one whose investigative work laid the foundation for understanding the chain of infection to an influential profession whose research on effective prevention methods have revoluntionized clinical practice throughout the world. Underlying our successes is the fact that growth in the profession has brought with it an enormous expansion in responsibilities, which in turn has impacted, in some cases severely, the personnel and time resources of infection control departments. At the same time, the economic pressures brought on by the upheavals in the business of health care have trickled down wherein it now influences the makeup and effectiveness of infection control programs. To continue with our mission of reducing morbidity and mortality, and perhaps to avoid a diminishing of our own professional influence, it will become essential that new approaches to the management of infection control programs be implemented. The approach must start by incorporating a basic mandate for change in the infection control professional.

Credentialing, diversity, and professional recognition-foundations for an Australian infection control career path

BACKGROUND

There are no regulatory, legislative, or professional criteria stipulating minimum qualifications or experience that a health care worker must meet to be capable of coordinating an Australian infection control (IC) program. Measurement of IC competence is important to protect the public and for the ongoing credibility and growth of the profession.

METHOD

Our study group was all 1078 nonmedical and nonindustry members of the Australian Infection Control Association in 1996. The survey examined perceived level of proficiency, level of education, and experience in health care and infection control. Almost three quarters (65%) of the members responded, and almost all (85%) of these respondents fulfilled the inclusion criterion of coordinating an IC program.

RESULTS

Experience in IC ranged from less than 2 years (33.6%) to more than 20 years (10.0%). The majority (65.0%) of infection control professionals (ICPs) had between 8 years and 12 years IC experience. The respective proportions of respondents' self-ranked levels of proficiency on a 5-point scale were novice (3.6%), advanced beginner (21.2%), competent (33.8%), proficient (34.7%), and expert (6.8%). Almost half (47%) of the novices agreed that a registered nursing (RN) qualification was required, whereas a majority (41%) of advanced beginners considered both an RN and a basic IC course (BASIC) were required. Competent ICPs agreed less often than the other levels about their requirements. However, 27% of competents identified a BASIC and an undergraduate degree (UG) as the minimum requirements for a competent ICP. Proficient ICPs agreed that they required an RN, UG, BASIC, and a postbasic course in IC. Nearly all experts (80.0%) agreed that they required an RN, UG, BASIC, postbasic course, and a course in hospital epidemiology (EP). Two thirds of experts expected a master's degree as a requirement.

CONCLUSION

The Australian IC profession is in an exciting period of development; however, the variation in ICP perception of the most appropriate qualifications and experience threatens the credibility and viability of the profession. This variation indicates the need for a clear-cut pathway that includes a system of credentialing, recognition of expertise, adoption of divergent roles, and improved networking. This pathway will lead to an increasingly credible and viable IC profession in Australia. Developing IC communities globally can benefit from the Australian experience.