Dengue is an infectious disease with high rates of morbidity and mortality, transmitted by the bite of the female mosquito of the genus Aedes aegypti, vector distributed in tropical and subtropical areas throughout the world. America is one of the most affected regions. This vector is controlled through insecticides that due to its constant use in populations, a resistance phenomenon has been produced. The objective of this review is to identify the situation of insecticide resistance in populations of Aedes aegypti in Latin American countries. In this region, several insecticides have been used for vector control; in the last 10 years insecticides of the pyrethroid and organophosphorus group have been used as adulticides for the control of the mosquito, conditioning resistance. Some insecticides such as organophosphates and deltamethrin, despite of not being intensively used in Latin American countries, also show resistance. Improvements in vector control are required, including the rotation of the insecticides during the different seasons, as well as innovating techniques and forms of vector control

La brucelosis es una zoonosis que representa un riesgo importante en la salud pública, sin embargo, existe un escaso seguimiento epidemiológico de la enfermedad debido a que no siempre es reportada conforme a la legislación implicada. En el presente año, de acuerdo a reportes de instancias gubernamentales no se han encontrado reportes de casos tanto en animales (bovinos) como en humanos, sin embargo, al considerarse una enfermedad ocupacional, se entrevistó a alumnos de la carrera de Medicina Veterinaria y Zootecnia de la Universidad Autónoma del Estado de Hidalgo a fin de dar a conocer los casos identificados dentro de sus pruebas diagnósticas con fines académicos, resultando en una variación entre lo dado a conocer por los alumnos con los datos reportados por el Sistema de Vigilancia Epidemiológica.

Objective: Analysis of a large consecutive case series of cases brought to an Emergency Department (ED).Design: Retrospective chart review.Setting: Emergency Department in Broward County, Florida.Patients: Medical records of patients with registered diagnoses of opioid overdose in 2016 and 2017.Outcomes: Demographics, toxicology results, mental-health comorbidities, use/response to naloxone, and hospital disposition.Results: Seven hundred and seventy nine opioid-overdose cases were identified (35 percent female, 65 percent male; age 36.2). Heroin intoxication was registered in 77 percent of discharge diagnoses, and 17.7 percent were prescription pain medications. Urine samples were collected in 39 percent and 81.5 percent of patients received naloxone (mean dose 4.0 mg ± 2.2). Sixty-five percent of cases were discharged home, 17.5 percent left the ED against medical advice, and 17.5 percent were admitted to the hospital/intensive care unit/behavioral unit.Conclusion: There is an alarming number of visits to the ED due to opioid overdoses with differences in age and gender. Clinicians are facing diagnostic, treatment and follow-up challenges for the management of these cases.