EMS Disease Exposure, Transmission, and Prevention: a Review Article

Occupational exposure to blood and body fluids among prehospital emergency medical services workers in Mashhad, Northeast of Iran

BACKGROUND

This study aimed to assess occupational exposure to blood and body fluids (BBFs) and the use of protective equipment among prehospital emergency medical services (EMS) workers in Mashhad, Iran.

METHODS

This cross-sectional questionnaire survey-based study was conducted from July 2020 to March 2021 in Mashhad. All prehospital EMS workers of Mashhad were invited to participate in the study using the census technique. The questionnaire was about occupational exposure to BBFs, infection control, protective measures, health program, and demographic information.

RESULTS

In total, 442 participants answered the questionnaire (response rate: 82.77%). Based on the findings, 420 (95.2%) and 402 (91.2%) participants had been exposed to BBFs as prehospital EMS workers. Moreover, 31.5% and 38.5% of these exposures were caused by contaminated needles and lancets, respectively. The BBFs incidents have occurred despite 98% of the EMS workers reporting there is a needle safety disposable box in the ambulance. The relationship between awareness of precaution measures after exposure to BBFs and training course completion was significant (P < .0001).

CONCLUSION

This study demonstrated the high prevalence of occupational exposures to BBFs among prehospital EMS workers. Considering the significant relationship between the completion of standard precautions courses and awareness of BBFs' postexposure measures, it is recommended to consider multi-faceted strategies for continuous monitoring, training, and follow-up of prehospital EMS workers.

A review of infectious disease epidemiology in emergency medical service clinicians

BACKGROUND

The emergency medical service (EMS) workforce is at high risk of occupationally-acquired infections. This review synthesized existing literature on the prevalence, incidence, and severity of infections in the EMS workforce.

METHODS

We searched PubMed, Embase, CINAHL, and SCOPUS from January 1, 2006 to March 15, 2022 for studies in the US that involved EMS clinician or firefighter populations and reported 1 or more health outcomes related to occupationally-acquired infections.

RESULTS

Of the 25 studies that met the inclusion criteria, most focused on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, with prevalence rates ranging from 1.1% to 36.2% (median 6.7%). The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in 4 studies ranged from 1.9% to 6.4%, and the prevalence of Hepatitis C in 1 study was 1.3%. Few studies reported incidence rates. The prevalence or incidence of these infections generally did not differ by age or gender, but 4 studies reported differences by race or ethnicity. In the 4 studies that compared infection rates between EMS clinicians and firefighters, EMS clinicians had a higher chance of hospitalization or death from SAR-CoV-2 (odds ratio 4.23), a higher prevalence of Hepatitis C in another study (odds ratio 1.74), and no significant difference in MRSA colonization in a separate study.

CONCLUSIONS

More research is needed to better characterize the incidence and severity of occupationally-acquired infections in the EMS workforce.

Differences in Motivating Factors for SARS-CoV-2 Vaccination and Perceptions of Infection Risk among Healthcare and EMS Personnel in South Carolina

OBJECTIVES

Although medical workers were prioritized to receive the coronavirus disease 2019 (COVID-19) vaccination, many have declined. Even though studies have investigated differences in COVID-19-related attitudes and vaccination for workers in hospitals and long-term care facilities, none have included emergency medical services (EMS) personnel. We investigated the association between type of medical worker (EMS vs healthcare worker [HCW]) and COVID-19 vaccination, vaccine beliefs, vaccine motivators, personal protection behaviors, and risk perceptions.

METHODS

The data for self-identified HCWs came from surveys distributed to randomly selected residents of South Carolina and EMS personnel recruited at a targeted surveillance testing event during the South Carolina EMS Symposium. Pearson χ2 and Fisher exact tests analyzed differences in the distribution of demographic characteristics and self-reported COVID-19 vaccination attitudes by medical workers. Multivariable logistic regression assessed the association between COVID-19 vaccination and type of medical worker, adjusting for age, sex, race, and frontline status, and assessed the associations among vaccine beliefs, vaccine motivators, personal protection behaviors, and risk perceptions by type of medical worker, adjusting for age, sex, race, frontline status, and vaccination status.

RESULTS

Of the 126 respondents 57.9% were EMS, 42.1% were HCWs, and 73.6% of the cohort were self-reported frontline medical workers. Approximately two-thirds of respondents received a vaccine for COVID-19, with no significant differences between EMS and HCWs; however, EMS workers were significantly less likely to receive the vaccination out of concern about exposures at work/school (adjusted odds ratio [aOR] 0.22, 95% confidence interval [CI] 0.08-0.57), concern about exposures within the community (aOR 0.18, 95% CI 0.07-0.48), or to do their part to control the pandemic (aOR 0.20, 95% CI 0.06-0.69). EMS workers also were significantly less likely to wear a mask all/most of the time when outside the home (aOR 0.04, 95% CI 0.0-0.21) and less concerned about the spread of COVID-19 in their community as compared with HCWs (aOR 0.19, 95% CI 0.06-0.56).

CONCLUSIONS

EMS personnel were significantly less concerned about the spread of COVID-19 in their community and significantly less likely to wear a mask all/most of the time while outside the home as compared with HCWs. Differences in the COVID-19-related attitudes and personal protection behaviors of EMS personnel should be used to develop targeted interventions to increase vaccine motivation and adherence to personal protection protocols.

The status of prehospital care delivery for COVID-19 patients in Addis Ababa, Ethiopia: The study emphasizing adverse events occurring in prehospital transport and associated factors

BACKGROUND

COVID-19 patients may require emergency medical services for emergent treatment and/or transport to a hospital for further treatment. However, it is common for the patients to experience adverse events during transport, even the shortest transport may cause life-threatening conditions. Most of the studies that have been done on prehospital care of COVID-19 patients were conducted in developed countries. Differences in population demographics and economy may limit the generalizability of available studies. So, this study was aimed at investigating the status of prehospital care delivery for COVID-19 patients in Addis Ababa focusing on adverse events that occurred during transport and associated factors.

METHODS

A total of 233 patients consecutively transported to Saint Paul's Hospital Millennium Medical College from November 6 to December 31, 2020, were included in the study. A team of physicians and nurses collected the data using a structured questionnaire. Descriptive statistics were used to summarize data, and ordinal logistic regression was carried out to assess the association between explanatory variables and the outcome variable. Results are presented using frequency, percentage, chi-square, crude and adjusted odds ratios (OR) with 95% confidence intervals.

RESULTS

The overall level of adverse events in prehospital setting was 44.2%. Having history of at least one chronic medical illness, [AOR3.2 (95%; CI; 1.11-9.53)]; distance traveled to reach destination facility, [AOR 0.11(95%; CI; 0.02-0.54)]; failure to recognize and administer oxygen to the patient in need of oxygen, [AOR 15.0(95%; CI; 4.0-55.7)]; absent or malfunctioned suctioning device, [AOR 4.0(95%; CI; 1.2-13.0)]; patients handling mishaps, [AOR 12.7(95%; CI; 2.9-56.8)] were the factors associated with adverse events in prehospital transport of COVID-19 patients.

CONCLUSIONS

There were a significant proportion of adverse events in prehospital care among COVID-19 patients. Most of the adverse events were preventable. There is an urgent need to strengthen prehospital emergency care in Ethiopia by equipping the ambulances with essential and properly functioning equipment and trained manpower. Awareness creation and training of transport staff in identifying potential hazards, at-risk patients, adequate documentation, and patient handling during transport could help to prevent or minimize adverse events in prehospital care.

Bacteria Associated with Healthcare-Associated Infections on Environmental Samples Obtained from Two Fire Departments

(1) Background: Firefighters spend about 64% of their time responding to medical emergencies and providing medical care without a patient history, which can render them vulnerable to healthcare-associated infections (HAI). Infection prevention, control, and surveillance systems have been instituted at hospitals. However, the prevalence of firefighters’ exposure to HAI is unknown. The objective of this study was to document evidence of HAI on surfaces in fire stations and engines to inform disinfection procedures and identify which pathogens might contribute to occupational exposures. (2) Methods: High-touch or high-use surfaces of two fire departments were sampled during five separate occasions. One fire station from one fire department was sampled over a 4-week period, whereas four fire stations were sampled from a different fire department only once. Sampled surfaces included: entryway floor, washing machine, medical bag, back seat of engine, keyboard of reporting computer, engine console, and uniform pants. (3) Results: Multiple statistical models determined that bacterial contamination was similar between the two fire departments and their stations. Keyboards were the most contaminated surface for all fire stations and departments, E. coli was the most common bacteria detected, and C. difficile was the least detected bacteria. Adjustments for rates of contamination found that contamination rates varied between fire stations. (4) Conclusions: Comprehensive environmental sampling and clinical studies are needed to better understand occupational exposures of firefighters to HAI.

Effect of Health Belief Model-Based Education on Infection Control Standard Precautions in Prehospital Emergency Staff: A Clinical Trial Study

BACKGROUND

Standard precautions are a basic strategy to prevent occupational exposure in prehospital emergency staff. The Health Belief Model (HBM)-based education can be used to promote and educate health behavior. The aim of this study was to investigate the effect of the HBM-based education on infection control standard precautions in prehospital emergency technicians.

MATERIALS AND METHODS

This clinical trial study was conducted on 84 prehospital emergency staff of Hamadan who were randomly assigned to two groups: Experimental (n: 42) and control (n: 42) using a cluster method. The data were collected by a researcher-developed questionnaire. Before education, the questionnaires were completed by both groups, and then three educational sessions were held for the experimental group within one month. Two months after the intervention, the two groups completed the questionnaire and the data were analyzed by SPSS 21 software.

RESULTS

Before education, there was no significant difference in the mean scores on HBM constructs and performance between the two groups (p > 0.05). The results of the Analysis of Covariance (ANCOVA) after educational intervention showed there was a significant difference in the mean scores of all constructs and performance between the two groups (p < 0.05).

CONCLUSIONS

HBM-based educational intervention could affect the scores of the model's constructs and improve the use of standard precautions in emergency medical technicians. In-service training is recommended to be developed for the staff based on HBM.

[COVID-19: acceptance and compliance of PPE (personal protective equipment) and rules for hygiene and reducing contacts in German emergency medical services-a nationwide survey]

BACKGROUND

The coronavirus disease 2019 (COVID-19) pandemic has also significantly burdened and challenged the German emergency medical services (EMS). In this regard, the personal protective equipment (PPE) and rules like wear a mask, stay 6 feet away from others, avoid crowds and poorly ventilated spaces, wash your hands often (called AHA‑L rules in Germany) play an important role in reducing the spread of COVID-19 infections.

OBJECTIVE

The aim of this study is to evaluate the acceptance and compliance of PPE and protective measures among rescue service personnel in Germany during pandemic periods.

METHOD

More than 270 medical directors of EMS were contacted. They were asked to forward a web-based online survey to the rescue stations. Participants were asked about acceptance and compliance in everyday life, in the rescue station, during missions without COVID-19, during missions with COVID-19.

RESULTS

There were n = 1295 participants. Overall acceptance and compliance of PPE and protective measures is high. The lowest acceptance and compliance is found in the questions acceptance (mean = 4.16; ±1.01) and compliance (mean = 4.26; ±0.89) in the rescue station.

CONCLUSION

We recommend targeted training regarding PPE in pandemics and the provision of appropriate premises for conflict-free compliance with AHA‑L rules.

Frequency of Occupational Bloodborne Infections and Sharps Injuries among Polish Paramedics from Selected Ambulance Stations

To evaluate the prevalence of bloodborne infections (BBIs) and assess the incidence and selected risk factors for sharps injuries (SIs), a cross-sectional serosurvey was performed between December 2018 and October 2019 among 286 paramedics (76.5% males; mean age, 37 years) from 17 randomly selected ambulance stations in the West Pomeranian region of Poland. An ELISA system was used to detect anti-HBc, anti-HCV, and anti-HIV. HBV vaccination uptake was 95.6%; 7.3% (95% CI: 4.6–11.0%) paramedics were anti-HBc positive, and anti-HCV/anti-HIV seropositivity was not reported. Almost one-fourth of paramedics reported having had ≥1 SI during the preceding year (Me = 6.0, range 1–100). Most recent exposures primarily took place during an emergency procedure (76.7%), in an ambulance (45.2%), caused by hollow-bore needles (73.8%), and were not reported (50.0%). Additionally, 52.2% of paramedics reported needle recapping, and 52.6% did not use safety engineered devices (SEDs) at work. Mean knowledge score was low (2.6 ± 1.7); 3.4% had never participated in infection-control (IC) training, and those not trained were more likely to suffer a SI (odds ratio (OR) 4.64; p = 0.03). Due to frequent SIs, of which half are unreported, paramedics remain at risk of acquiring occupational BBIs. SI risk could be reduced by providing training on IC procedures, ensuring better compliance with safe work practices, and supplying more SEDs.