Publications by authors named "Negron M"

Leptospirosis, an acute bacterial zoonotic disease, is endemic in Puerto Rico. Infection in approximately 10%-15% of patients with clinical disease progresses to severe, potentially fatal illness. Increased incidence has been associated with flooding in endemic areas around the world.

View Article and Find Full Text PDF
Article Synopsis
  • - This report highlights the risk of exposure to the zoonotic pathogen Brucella canis on a commercial flight after an infected dog aborted in the cabin, emphasizing challenges in brucellosis screening for airline staff and travelers.
  • - It outlines a public health investigation involving several health departments and diagnostic laboratories to diagnose canine brucellosis and evaluate the exposure risk among passengers and airline personnel, who received infection prevention guidance.
  • - The conclusions stress the need for regular screening of dogs for brucellosis, point out the difficulties in monitoring health histories of dogs at the time of acquisition, and suggest that transporting pregnant dogs poses significant health risks that need further attention.
View Article and Find Full Text PDF

Brucellosis is a zoonotic disease, caused by some species within the Brucella genus. The primary and secondary objectives of this cross-sectional study were to determine the seroprevalence of Brucella antibodies in humans and cows and identify risk factors for exposure to Brucella spp. among people in Shahjadpur sub-district, Bangladesh.

View Article and Find Full Text PDF

Melioidosis, caused by , is a rare but potentially fatal bacterial disease endemic to tropical and subtropical regions worldwide. It is typically acquired through contact with contaminated soil or fresh water. Before this investigation, was not known to have been isolated from the environment in the continental United States.

View Article and Find Full Text PDF

During May 10-December 31, 2022, a total of 29,980 confirmed and probable U.S. monkeypox (mpox) cases were reported to CDC, predominantly in cisgender adult men reporting recent same-gender sexual partners (1).

View Article and Find Full Text PDF

On May 17, 2022, the Massachusetts Department of Health announced the first suspected case of monkeypox associated with the global outbreak in a U.S. resident.

View Article and Find Full Text PDF

Background: Cutaneous anthrax accounts for approximately 95% of anthrax cases worldwide. About 24% of untreated patients die, and many cases are complicated by meningitis. Here, we explore clinical features of cutaneous disease associated with poor outcomes.

View Article and Find Full Text PDF
Article Synopsis
  • Anthrax, caused by the bacterium Bacillus anthracis, is a significant global health concern and bioterrorism threat, requiring effective postexposure prophylaxis (PEPAbx) to reduce mortality.
  • A systematic review of 34 studies involving 3,262 animals evaluated various antibiotics for treating anthrax, revealing that fluoroquinolones, tetracyclines, β-lactams, and lipopeptides/glycopeptides are effective options.
  • Monte Carlo simulations indicated that oral ciprofloxacin, levofloxacin, and doxycycline achieved drug exposures in humans sufficient to inhibit the growth of anthrax bacteria, suggesting these antibiotics may be reliable for treatment and prevention.
View Article and Find Full Text PDF

Since May 2022, approximately 20,000 cases of monkeypox have been identified in the United States, part of a global outbreak occurring in approximately 90 countries and currently affecting primarily gay, bisexual, and other men who have sex with men (MSM) (1). Monkeypox virus (MPXV) spreads from person to person through close, prolonged contact; a small number of cases have occurred in populations who are not MSM (e.g.

View Article and Find Full Text PDF
Article Synopsis
  • - Monkeypox, which originates from an orthopoxvirus and is commonly found in Africa, has led to a public health emergency in the U.S. since its outbreak began in May 2022, with over 2,891 cases reported by late July 2022.
  • - The majority of cases (99%) are among men, with a high correlation to male-to-male sexual or intimate contact, and there are significant disparities among racial and ethnic groups, particularly among non-Hispanic White, Hispanic, and Black populations.
  • - The CDC and health agencies are focusing their response on enhancing testing, treatment, and vaccination, particularly for gay and bisexual men who are significantly impacted, while emphasizing the importance of equity and
View Article and Find Full Text PDF
Article Synopsis
  • Group bacteria with anthrax toxin genes can lead to deadly anthrax pneumonia in welders.
  • Two cases from 2020 were investigated to find the source of exposure, involving environmental sampling of soil and dust at the patients' worksites.
  • The investigation revealed that while one patient's samples showed positive results for anthrax toxins, including matching the patient's clinical isolate, the other patient's samples tested negative, highlighting the importance of workplace assessments to reduce exposure risks.
View Article and Find Full Text PDF

Zoonotic diseases represent a heavy global burden, causing important economic losses, impacting animal health and production, and costing millions of human lives. The vaccination of animals and humans to prevent inter-species zoonotic disease transmission is an important intervention. However, efforts to develop and implement vaccine interventions to reduce zoonotic disease impacts are often limited to the veterinary and agricultural sectors and do not reflect the shared burden of disease.

View Article and Find Full Text PDF

Brain-derived neurotrophic factor is the most prevalent member of the nerve growth factor family. Since its discovery in 1978, this enigmatic molecule has spawned more than 27,000 publications, most of which are focused on neurological disorders. Brain-derived neurotrophic factor is indispensable during embryogenesis and postnatally for the normal development and function of both the central and peripheral nervous systems.

View Article and Find Full Text PDF
Article Synopsis
  • A One Health approach is crucial for preventing and controlling zoonotic diseases, involving collaboration among fields like human health, animal health, and environmental sciences.
  • The Generalizable One Health Framework (GOHF) offers a structured five-step process to guide the implementation of One Health strategies for zoonotic disease management at multiple levels.
  • The framework includes a toolkit that organizes existing resources and provides recommendations for areas such as laboratory work, surveillance, and preparedness, enhancing capacity to address zoonotic threats impacting humans, animals, and the environment.
View Article and Find Full Text PDF

Melioidosis, caused by the bacterium is an uncommon infection that is typically associated with exposure to soil and water in tropical and subtropical environments. It is rarely diagnosed in the continental United States. Patients with melioidosis in the United States commonly report travel to regions where melioidosis is endemic.

View Article and Find Full Text PDF

Background: Brucellosis is a neglected bacterial zoonotic disease with substantial economic impact on households. Pastoral communities are a potential risk group due to their way of life being closely interlinked with their large livestock herds.

Methodology: A semi-structured questionnaire survey was conducted in households in the pastoral Afar and Somali (SRS) regions.

View Article and Find Full Text PDF

Background: Brucellosis is widespread in Ethiopia with variable reported prevalence depending on the geographical area, husbandry practices and animal species. However, there is limited information on the disease prevalence amongst pastoral communities, whose life is intricately linked with their livestock.

Methodology: We conducted an integrated human-animal brucellosis sero-surveillance study in two adjacent pastoral regions, Afar and Somali region (SRS).

View Article and Find Full Text PDF

Brain-derived neurotrophic factor (BDNF) is a pleiotropic neuronal growth and survival factor that is indispensable in the brain, as well as in multiple other tissues and organs, including the cardiovascular system. In approximately 30% of the general population, BDNF harbors a nonsynonymous single nucleotide polymorphism that may be associated with cardiometabolic disorders, coronary artery disease, and Duchenne muscular dystrophy cardiomyopathy. We recently showed that transgenic mice with the human BDNF rs6265 polymorphism (Val66Met) exhibit altered cardiac function, and that cardiomyocytes isolated from these mice are also less contractile.

View Article and Find Full Text PDF

Zoonotic diseases require a One Health approach for successful control and elimination due to the nature of their transmission between animals and humans. One Health recognises that the health of humans, animals, and the environment are all interconnected. Ethiopia has committed itself to controlling five prioritised zoonotic diseases (rabies, anthrax, brucellosis, leptospirosis and echinococcosis), using a One Health approach.

View Article and Find Full Text PDF