Muhammad Thuneibat, Allison D Miller, Shanna Miko, Michelle E Gleason, Hannah Lawinger, Jonathan S Yoder, Vincent R Hill, Virginia A Roberts
{"title":"Outbreaks Associated with Ingesting Water from Freshwater Sources in Outdoor Settings-United States, 2000-2022.","authors":"Muhammad Thuneibat, Allison D Miller, Shanna Miko, Michelle E Gleason, Hannah Lawinger, Jonathan S Yoder, Vincent R Hill, Virginia A Roberts","doi":"10.1177/10806032251344070","DOIUrl":"https://doi.org/10.1177/10806032251344070","url":null,"abstract":"<p><p>IntroductionFreshwater sources (eg, lakes, ponds, rivers, or streams) can be contaminated by pathogens. Ingesting water from these sources can cause illness if the water is insufficiently treated.MethodThe Waterborne Disease and Outbreak Surveillance System (WBDOSS) collects data on waterborne disease outbreaks associated with drinking water, recreational water, other nonrecreational water, and undetermined exposures to water. We analyzed outbreaks reported to WBDOSS that involved ingesting water from freshwater sources in outdoor settings.ResultFrom 2000 through 2022, public health officials in 16 jurisdictions reported 32 outbreaks associated with ingesting water from insufficiently treated freshwater sources. These outbreaks resulted in 437 illnesses, 4 hospitalizations, and no reported deaths. <i>Giardia</i> was implicated in 69% of outbreaks, and <i>Campylobacter</i> was implicated in 28% of total cases. Water from rivers or streams was implicated in 75% of outbreaks. In half the reported outbreaks, water treatment was not attempted. Individuals were primarily exposed in outdoor recreational areas (eg, public outdoor areas, state parks, campgrounds), with most illnesses occurring in those aged 10-19 years.ConclusionThis is the first summary dedicated to outbreaks associated with ingesting freshwater. These outbreaks can be mitigated using potable water sources, when available, or appropriate water treatment. Public health and provider efforts could include engaging the public-especially those who spend time in the backcountry-regarding health risks and encouraging hygiene, safe disposal of feces, and recommended water treatment methods. Healthcare providers should be encouraged to ask individuals about potential exposure to water from outdoor freshwater sources when presenting with gastrointestinal illness.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"10806032251344070"},"PeriodicalIF":1.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144217371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joseph A Sol, Amanda Alafaro-Chevarri, Burke McGowan, Basil Coutinho, Elias M Malek, Graham R McGinnis, John C Quindry
{"title":"Evaluation of Physiologic Responses to Woodsmoke Inhalation During Exercise in Blood Pressure-Sensitive/Chronotype-Stratified Individuals.","authors":"Joseph A Sol, Amanda Alafaro-Chevarri, Burke McGowan, Basil Coutinho, Elias M Malek, Graham R McGinnis, John C Quindry","doi":"10.1177/10806032251343803","DOIUrl":"https://doi.org/10.1177/10806032251343803","url":null,"abstract":"<p><p>IntroductionWe examined the physiologic alterations in respiratory and cardiovascular parameters during and after acute exercise under controlled woodsmoke inhalation conditions.MethodsThis study involved 20 recreationally active participants (10 males and 10 females) divided into groups based on their sensitivity to the cold pressor test (CPT<sup>+</sup> vs CPT<sup>-</sup>) and their chronotype, as assessed by the Morningness-Eveningness Questionnaire. Participants completed a 120-min stationary cycling session at 50% VO<sub>2</sub>max while exposed to woodsmoke at a concentration of 250 μg·m<sup>-3</sup>. Assessments of heart rate variability, pulse wave velocity, blood pressure, pulmonary function testing, and oxidative stress were performed before, immediately after, and 24 h after exercise.ResultsIn the CPT<sup>+</sup> group, significant alterations were noted in the pulse wave velocity variable, augmentation index, and heart rate variability metrics of logarithmic transformation of high- and low-frequency powers of heart rate variability immediately following exercise, whereas no such changes were observed in the CPT<sup>-</sup> group.ConclusionClassification of participants indicated a potentially susceptible subpopulation when exposed to a single acute exercise session in the presence of woodsmoke.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"10806032251343803"},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huating Zhao, Bin Han, Chengwei Ao, Dangbo Bao, Ruanxian Dai
{"title":"Envenoming by King Cobra (<i>Ophiophagus hannah</i> s str) with Cardiopulmonary Arrest in Yunnan, China.","authors":"Huating Zhao, Bin Han, Chengwei Ao, Dangbo Bao, Ruanxian Dai","doi":"10.1177/10806032251345769","DOIUrl":"https://doi.org/10.1177/10806032251345769","url":null,"abstract":"<p><p>The king cobra (<i>Ophiophagus hannah</i> s str) is feared for its large size and highly toxic venom because its bite can result in severe envenoming and life-threatening injuries. We report a case involving a 50-y-old male from the mountainous town of Yunnan Province who experienced cardiopulmonary arrest after being bitten by a king cobra on his left index finger, followed by myocardial injury, pulmonary infection, and serologic reactions. During treatment, the patient received <i>Bungarus multicinctus</i> antivenom and cobra antivenom to neutralize the toxin, intubation, mechanical ventilation, antibiotics, anticholinergic drugs, and antiallergy therapy. After active treatment, the patient ultimately recovered. This case analysis highlights the multiple toxic reactions caused by the bite of the king cobra. It emphasizes the critical importance of timely and effective antivenom therapy and a comprehensive treatment strategy in managing snakebite injuries.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"10806032251345769"},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Unusual Case of Epistaxis: Intranasal <i>Bipalium</i> Pseudoparasite.","authors":"Brandon Watkins, David Cabaniss, Paul Bracey","doi":"10.1177/10806032251343594","DOIUrl":"https://doi.org/10.1177/10806032251343594","url":null,"abstract":"<p><p>Hammerhead worms are becoming increasingly common in the southeastern United States as the invasive species continues to spread. Limited data exist on this species acting as a pseudoparasite, with only 3 documented cases found on literature review of Bipalidae species living inside human hosts. We present one such case from Shreveport, Louisiana, of a patient who arrived at the emergency department after a hammerhead worm was expelled from his sinus passage. A 13-y-old male with a history of autism and developmental delay had been complaining of headache for 2 to 3 d. He had a spontaneous nosebleed from his right nostril on the morning of presentation to the emergency department. On blowing his nose, a large hammerhead worm was evacuated from his sinuses. Imaging studies and direct visualization did not reveal any significant damage or remaining helminths in the sinus passages. Due to patient risk factors for parasitic infection, while definitive identification of the worm species was still pending, a course of albendazole was prescribed. The patient was discharged from the emergency department in good condition. As this invasive species becomes more common in warm and humid areas of the United States, infection with these pseudoparasites may become more prevalent as well. Fortunately, this appears to be a rare occurrence, and clinical sequelae appear to be minimal after removal of the organism.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"10806032251343594"},"PeriodicalIF":1.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144200620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Engineering Capstone Projects: Advancing Wilderness Medicine Solutions and Awareness in Undergraduate Education.","authors":"Hillary E Davis","doi":"10.1177/10806032251346691","DOIUrl":"https://doi.org/10.1177/10806032251346691","url":null,"abstract":"","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"10806032251346691"},"PeriodicalIF":1.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144200621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Suspected Stonefish Envenomation in Reunion Island: 15 Years Later.","authors":"Louis Renson, François Maillet, Corentin Bonnet","doi":"10.1177/10806032241308477","DOIUrl":"10.1177/10806032241308477","url":null,"abstract":"<p><p>IntroductionAlthough marine envenomations are a reason for consultation in tropical emergency departments, stonefish stings are particularly feared. Immediate management focuses on pain control, whereas late management addresses cutaneous complications. This study presents a new series and compares the management of these patients and their outcomes at our center over the past 20 years.MethodsThis study presents a new series of 53 patients treated between 2016 and 2020 at the South Hospital of the University Hospital Center of Réunion following a sting attributed to the stonefish. We compared this new series with a previous series of patients treated at the same center for the same reason between 2001 and 2005.ResultsThe series are comparable. Regarding early management, the use of regional anesthesia was more frequent (47 vs 3.5%). Half the patients received a strong opioid. Prescription of nonsteroidal anti-inflammatory drugs and corticosteroids persisted. Exposure to a heat source remained common. Prophylactic antibiotics were prescribed more frequently (64 vs 35%) and more uniformly with amoxicillin/clavulanate. Regarding late management, the average duration of hospitalization decreased (1.8 vs 2.6 d). Cutaneous complications were less frequent (9 vs 25%). No patient managed with regional anesthesia presented cutaneous complications.ConclusionsThe management of patients in Réunion following Scorpaenidae stings has evolved over time. Regional anesthesia has become more widespread, and the prescription of probabilistic preventive antibiotic therapy is more homogeneous. These changes are associated with a shorter hospital stay and fewer cutaneous complications.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"171-175"},"PeriodicalIF":1.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrew Lachance, Michael Oravic, Roman Steika, Colt Crymes, Stephan Aynaszyan, Alexia Gagliardi, Joseph Choi
{"title":"Incidence and Outcomes of Tree Stand Injuries in Rural Pennsylvania.","authors":"Andrew Lachance, Michael Oravic, Roman Steika, Colt Crymes, Stephan Aynaszyan, Alexia Gagliardi, Joseph Choi","doi":"10.1177/10806032251316793","DOIUrl":"10.1177/10806032251316793","url":null,"abstract":"<p><p>IntroductionIn the United States, more than 11.5 million people participate in hunting. Deer hunters commonly use tree stands as tall as 8 m. Falls from tree stands can cause injury and even death. Previous studies have investigated the types of injuries sustained from tree stand falls, but few have investigated patient outcomes. This study investigated patient outcomes related to tree stand falls and analyzed injury types resulting from tree stand falls, and this paper discusses factors that may lead to tree stand falls.MethodsThis study used a retrospective chart review of patients at the same institution between January 1, 2012, and August 31, 2022. Patient information, injury type, fall height, and interventions were collected.ResultsA total of 38 patients were included in the study, 36 males (94.70%) and 2 females (5.30%). The average fall height from a tree stand was 4.22±1.62 m (13.86±5.30 ft). Of the 38 patients, 19 had sustained orthopedic injuries to their upper extremity, lower extremity, spine/pelvis, or multiple areas; the average fall height of this subgroup was 4.51±1.76 m (14.79±5.76 ft). Nonoperative management was the highest used intervention because 12 patients did not require surgery. Orthopedic surgery was used to treat 6 patients, and 1 patient had nonorthopedic surgery.ConclusionsAlthough tree stand falls are rare, the injuries they cause can be fatal. Injury severity and outcome are determined by a multitude of factors. This study highlights the significance of these injuries and the importance of practicing safe guidelines while hunting.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"190-193"},"PeriodicalIF":1.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koa Gudelunas, Gregory A Chinn, Odmara L Barreto-Chang, Leah Campbell, Jeffrey W Sall
{"title":"A 4-Day Exposure to High Altitude Prolongs QTc in Healthy Human Subjects.","authors":"Koa Gudelunas, Gregory A Chinn, Odmara L Barreto-Chang, Leah Campbell, Jeffrey W Sall","doi":"10.1177/10806032251314740","DOIUrl":"10.1177/10806032251314740","url":null,"abstract":"<p><p>IntroductionLong QTc syndrome can predispose patients to fatal ventricular arrhythmias. We studied the effects of a rapid ascent and a multiday stay at high altitude on QTc interval.MethodsWe recorded electrocardiograms (ECGs) on study subjects at sea level and then again after a 1-d ascent to 3800 m. Two sea-level ECGs were recorded at the initial screening visit (SL1) and 14 days later (SL2). Altitude ECGs were recorded at approximately 16 and 86 h after arrival. SpO<sub>2</sub> was recorded prior to each ECG measurement. We defined prolonged QTc as a QTc interval >450 ms for men and >470 ms for women. We used multivariate analysis to analyze the QTc interval for the effect of drugs, altitude, and changes in electrolytes.ResultsWe enrolled 107 subjects: 61 males and 46 females between the ages of 19 and 54 y, with a median age of 34 y. QTcF (QT interval for varying heart rates using Fridericia's formula) at SL1 was 405±17 ms; at SL2, 404±17 ms; at 16 h, 411±18 ms; and at 86 h, 427±24 ms. After 86 h at altitude, 12 participants met the criteria for prolonged QT syndrome, and 61% of subjects had QTc prolongation of >20 ms from sea-level values. This was independent of changes in serum electrolyte levels, (i.e., sodium, potassium, and calcium), bicarbonate levels, and SpO<sub>2</sub>.ConclusionHigh altitude exposure can lengthen a healthy adult's QTc interval by more than 20 ms. It remains unknown whether this increase might raise the risk of torsades de pointes in people with long QT intervals at baseline.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"176-181"},"PeriodicalIF":1.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143484539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oscar Barnés-Valldejuly, Adrianne Wurzl, Benjamin Church
{"title":"Clinical Risk Assessment and Treatment of a Man Attacked by a Rabid North American Beaver (<i>Castor canadensis</i>) in the Connecticut River: Case Report.","authors":"Oscar Barnés-Valldejuly, Adrianne Wurzl, Benjamin Church","doi":"10.1177/10806032241310387","DOIUrl":"10.1177/10806032241310387","url":null,"abstract":"<p><p>A 46-y-old male was swimming in the Connecticut River near Hatfield, Massachusetts, when he suffered an unprovoked attack from a North American beaver (<i>Castor canadensis</i>). The beaver attacked the man 3 separate times, inflicting multiple bite wounds to his arms and torso, ultimately attaching itself to his arm without releasing. The patient was brought to our emergency department, where the wounds were treated, and rabies postexposure prophylaxis was begun. The beaver tested positive for rabies shortly thereafter. Here we review the case of an unprovoked attack by a beaver and clinical risk assessment for rabies, along with management including postexposure prophylaxis, tetanus immunization, and wound care.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"263-266"},"PeriodicalIF":1.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143544060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"<i>Solanum erianthum</i> Poisoning Causing Speech Disturbance: A Case Series.","authors":"Lee Kee Choon, Ain Izzati Khiruddin","doi":"10.1177/10806032241304734","DOIUrl":"10.1177/10806032241304734","url":null,"abstract":"<p><p>The Solanaceae plant family (<i>Solanum</i>), such as capsicum, eggplant, potato, and tomato, is made up of common plants consumed by humans. Despite having medicinal benefits, these plants can produce toxic alkaloid compounds. We report 2 cases of uncommon <i>Solanum erianthum</i> poisoning after consuming the berries as a meal. Both patients presented with slurring of speech, which is easily mistaken for a stroke. Symptoms developed 19 h after consuming the wild berries and resolved spontaneously 12 h after onset. Both patients recovered with no neurologic deficit. No antidote was given in either case. The Solanaceae plant family is a common group of plants consumed by humans and is considered one of the largest genera. The phytochemical profile showed that the leaves and berries contain toxic glycoalkaloid levels, which can cause gastrointestinal and neurologic symptoms in poisoning cases. Reports have shown that the toxic glycoalkaloids can inhibit the cholinesterase enzyme, thus producing cholinergic effects. Theoretically, atropine is the choice of antidote, but no case report of atropine use has been documented. Treatment of <i>S erianthum</i> poisoning remains supportive care. These cases highlight the rare occurrence of poisoning from <i>S erianthum</i> and emphasize the necessity for considering toxicologic causes in nonlocalizing neurologic symptoms.</p>","PeriodicalId":49360,"journal":{"name":"Wilderness & Environmental Medicine","volume":" ","pages":"251-256"},"PeriodicalIF":1.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}