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Crew Members (crew + member)
Selected AbstractsRisk of Norovirus Transmission during Air TravelJOURNAL OF TRAVEL MEDICINE, Issue 5 2009Krista Kornylo MPH Background. During October 2006, an outbreak of norovirus gastroenteritis sickened 200 (59%) of the 379 passengers and 26 (18%) of the 144 crew members on a riverboat. In November 2006, CDC was notified that a group of ill passengers had boarded a commercial flight from St Louis, Missouri, to Atlanta, Georgia. A recent study demonstrated probable norovirus transmission from eight symptomatic flight attendants to passengers on board an aircraft during an international flight; however, there are no published reports of transmission of norovirus on flights of short duration. Methods. We investigated the risk of norovirus transmission on a short flight as part of an outbreak response. Using a standardized questionnaire, we conducted interviews of passengers and flight attendants who were on the flight. We collected information on traveler demographics and illness before, during, and after the flight. We also collected information about potential onboard risk factors for norovirus transmission, such as proximity and contact with ill appearing persons during the flight, as well as use of onboard lavatories and hand hygiene. Results. We were able to complete questionnaires for 50 (56%) of the 89 passengers on the flight and 2 (67%) of the 3 flight attendants. Two (5%) of 42 possible secondary cases were identified. These two passengers neither sat in proximity to an index-case passenger during the flight nor reported use of an onboard lavatory. Conclusions. Although onboard transmission cannot be excluded, likelihood of norovirus transmission on a short flight when ill travelers do not have episodes of vomiting or diarrhea appears minimal. [source] Asbestos-related cancers among 28,300 military servicemen in the Royal Norwegian NavyAMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 1 2010Leif Aage Strand MSc Abstract Introduction This study focus on the incidence of asbestos-related cancers among 28,300 officers and enlisted servicemen in the Royal Norwegian Navy. Until 1987, asbestos aboard the vessels potentially caused exposure to 11,500 crew members. Methods Standardized incidence ratios (SIR) were calculated for malignant mesothelioma, lung cancer, and laryngeal, pharyngeal, stomach, and colorectal cancers according to service aboard between 1950 and 1987 and in other Navy personnel. Results Increased risk of mesothelioma was seen among engine room crews, with SIRs of 6.23 (95% CI,=,2.51,12.8) and 6.49 (95% CI,=,2.11,15.1) for personnel who served less than 2 years and those with longer service, respectively. Lung cancer was nearly 20% higher than expected among both engine crews and non-engine crews. An excess of colorectal cancer bordering on statistical significance was seen among non-engine crews (SIR,=,1.14; 95% CI,=,0.98,1.32). Land-based personnel and personnel who served aboard after 1987 had lower lung cancer incidence than expected (SIR,=,0.77; 95% CI,=,0.64,0.92). No elevated risk of laryngeal, pharyngeal, or stomach cancers was seen. Conclusion The overall increase (65%) in mesotheliomas among military Navy servicemen was confined to marine engine crews only. The mesothelioma incidence can be taken as an indicator of the presence or absence of asbestos exposure, but it offered no consistent explanation to the variation in incidence of other asbestos-related cancers. Am. J. Ind. Med. 53:64,71, 2010. © 2009 Wiley-Liss, Inc. [source] Ergonomic risk factors for low back pain in North Carolina crab pot and gill net commercial fishermenAMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 4 2009Kristen L. Kucera PhD Abstract Background The objective of this research was to determine the association between LBP that limited or interrupted fishing work and ergonomic low back stress measured by (1) self-reported task and (2) two ergonomic assessment methods of low back stress. Methods Eligible participants were from a cohort of North Carolina commercial fishermen followed for LBP in regular clinic visits from 1999 to 2001 (n,=,177). Work history, including crab pot and gill net fishing task frequency, was evaluated in a telephone questionnaire (n,=,105). Ergonomic exposures were measured in previous study of 25 fishermen using two methods. The occurrence rate of LBP that limited or interrupted fishing work since last visit (severe LBP) was evaluated in a generalized Poisson regression model. Results Predictors of severe LBP included fishing with crew members and a previous history of severe LBP. Among crab pot and gill net fishermen (n,=,89), running pullers or net reels, sorting catch, and unloading catch were associated with an increased rate of LBP. Percent of time in forces >20 lb while in non-neutral trunk posture, spine compression >3,400 N, and National Institute of Occupational Safety and Health lifting indices >3.0 were associated with LBP. Conclusions Tasks characterized by higher (unloading boat and sorting catch) and lower (running puller or net reel) ergonomic low back stress were associated with the occurrence of severe LBP. History of LBP, addition of crew members, and self-selection out of tasks were likely important contributors to the patterns of low back stress and outcomes we observed. Based on the results of this study, a participatory ergonomic intervention study is currently being conducted to develop tools and equipment to decrease low back stress in commercial crab pot fishing. Am. J. Ind. Med. 52:311,321, 2009. © 2009 Wiley-Liss, Inc. [source] Noise exposures aboard catcher/processor fishing vesselsAMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 8 2006Richard L. Neitzel MS Abstract Background Commercial fishing workers have extended work shifts and potential for 24 hr exposures to high noise. However, exposures in this industry have not been adequately characterized. Methods Noise exposures aboard two catcher/processors (C/P) were assessed using dosimetry, sound-level mapping, and self-reported activities and hearing protection device (HPD) use. These data were combined to estimate work shift, non-work, and 24 hr overall exposure levels using several metrics. The length of time during which HPDs were worn was also used to calculate the effective protection received by crew members. Results Nearly all workers had work shift and 24 hr noise levels that exceeded the relevant limits. After HPD use was accounted for, half of the 24 hr exposures remained above relevant limits. Non-work-shift noise contributed nothing to 24 hr exposure levels. HPDs reduced the average exposure by about 10 dBA, but not all workers wore them consistently. Conclusions The primary risk of hearing loss aboard the monitored vessels comes from work shift noise. Smaller vessels or vessels with different layouts may present more risk of hearing damage from non-work periods. Additional efforts are needed to increase use of HPDs or implement noise controls. Am. J. Ind. Med. 2006. © 2006 Wiley-Liss, Inc. [source] Mal de Debarquement and Posture: Reduced Reliance on Vestibular and Visual CuesTHE LARYNGOSCOPE, Issue 3 2004Zohar Nachum MD Abstract Objective The neural mismatch theory assumes that the intersensory conflicts leading to motion sickness are resolved by changes in the relative weighting of the various senses that contribute to orientation. If this sensory rearrangement persists after disembarkment, it might result in mal de debarquement (MD): ataxia and a rocking sensation sometimes felt after landing. The objective of the present study was to examine possible changes in sensory organization in naval crew members with differing susceptibility to MD with computerized dynamic posturography (CDP). Study Design Cross-sectional parallel-group design. Methods Seventeen subjects susceptible to MD (SMD) and 17 subjects nonsusceptible to MD (NSMD) (healthy male volunteers aged 18,22) participated in the study. CDP was performed twice with each subject, before and immediately after sailing, using the EquiTest system (NeuroCom, Inc., Clackamas, OR). Results The SMD group showed a significant reduction in their scores on sensory organization tests 3, 4, and 5 after sailing. Sensory pattern analysis revealed reduced use of inputs from the vestibular and visual systems to maintain balance. Prolonged latencies of the motor responses to unexpected pitch perturbations were also recorded in the postsailing CDP of the SMD group. Reduced performance on the presailing CDP task, which presents the greatest challenge to the vestibular system, was found to control for the presence of MD postsailing. Conclusions The results show that MD is associated with postural instability, slower motor reflexes, and larger sways in response to abrupt changes in the body's center of gravity. These findings may be explained by under reliance on vestibular and visual inputs and increased dependence on the somatosensory system for the maintenance of balance. [source] Radiofrequency exposure on fast patrol boats in the Royal Norwegian Navy,an approach to a dose assessmentBIOELECTROMAGNETICS, Issue 5 2010Valborg Baste Abstract Epidemiological studies related to radiofrequency (RF) electromagnetic fields (EMF) have mainly used crude proxies for exposure, such as job titles, distance to, or use of different equipment emitting RF EMF. The Royal Norwegian Navy (RNoN) has measured RF field emitted from high-frequency antennas and radars on several spots where the crew would most likely be located aboard fast patrol boats (FPB). These boats are small, with short distance between the crew and the equipment emitting RF field. We have described the measured RF exposure aboard FPB and suggested different methods for calculations of total exposure and annual dose. Linear and spatial average in addition to percentage of ICNIRP and squared deviation of ICNIRP has been used. The methods will form the basis of a job exposure matrix where relative differences in exposure between groups of crew members can be used in further epidemiological studies of reproductive health. Bioelectromagnetics 31:350,360, 2010. © 2010 Wiley-Liss, Inc. [source] 19 A Novel Approach to Residency Education in EMS: The MD-PM AmbulanceACADEMIC EMERGENCY MEDICINE, Issue 2008Angela Fiege Challenge:, Indiana University EM residents have actively provided prehospital care as crew members on a hospital-based air ambulance service. This service functions as a secondary responder for high acuity patients who have already had first tier evaluation and care. First response, ground EMS experiences have been observational only as residents have ridden along with a two-paramedic team on an urban ambulance service for 24 hours during their residency careers. Resident understanding of first response care and challenges faced by initial EMS providers has been limited to that gleaned during their observational period. Solution:, Most EM residencies do not provide opportunities for residents to function as first response providers. Therefore, we developed a Physician-Paramedic team to provide first response care within a busy metropolitan area. This two-member team operates within a "geozone" that includes a diverse patient population with both medical and trauma complaints. Unlike other residency ground EMS programs, the MD-PM truck responds primarily to all ambulance requests within their designated geozone and assists outside their designated geozone for multi-patient casualties in which a physician response would benefit patient care (fires, motor vehicle accidents, multiple gunshot victims). Residents on the MD-PM truck not only provide care equivalent to that expected of a nationally certified paramedic (IVs, drug administration, splinting, packaging), but also perform advanced skills such as RSI which is outside the scope of a traditional two-paramedic team. Immersion into the first response ground EMS system will provide valuable insight into the challenges of providing care outside of the hospital. [source] | ||||||||||