Rickettsial Disease Outbreak, Mexico, 2022.

Beginning in 2022, Nuevo Leon, Mexico, experienced an outbreak of rickettsioses that is still ongoing despite multidisciplinary control efforts. A total of 57 cases have been confirmed, particularly affecting children. We report a high mortality rate among hospitalized persons in Nuevo Leon. Continuing efforts are required to control the outbreak.

First Record of Wyeomyia mitchellii in Nuevo León, Mexico.

On October 5, 2021, mosquito collections were conducted in Nuevo León in search of an undescribed species within the genus Wyeomyia reported previously in this state. Species collected included Aedes quadrivittatus, Ae. amabilis, Ae. triseriatus group, Ae. albopictus, and Wy. mitchellii. Although the undescribed species was not found, the occurrence record for Wy. mitchellii in Nuevo León constitutes the 1st record for this species in this state. Additionally, historical records of the presence of Wy. mitchelli in Mexico, available in the literature, were reviewed and updated. Specimens collected during this study were deposited in the Culicidae Collection of the Parasitology Department, Autonomous Agrarian University Antonio Narro, Laguna unit. With the addition of Wy. mitchellii to the mosquito fauna of Nuevo León, there are currently 67 species in the state.

Impacto del Covid-19 en las condiciones laborales de la población joven de Nuevo León, México / The impact of Covid-19 in youth working conditions in Nuevo Leon, Mexico

Resumen La pandemia del COVID-19 no solo ha afectado la salud pública, también ha repercutido en la macro y micro economía. Las condiciones laborales cambiaron, sobre todo para la población joven, al presentarse desde disminución de salarios y prestaciones, hasta el cierre de negocios, principalmente los negocios pequeños. El objetivo del presente estudio fue analizar el efecto de esas alteraciones en las personas de entre 15 y 29 años, en el estado de Nuevo León. Para ello, se compararon sus condiciones laborales con las de los adultos del estado y de los jóvenes del resto del país a partir de la información obtenida de los microdatos de la Encuesta Nacional de Ocupación y Empleo del tercer trimestre de 2019 y el de 2020. El análisis indica que la participación laboral de este segmento poblacional del estado se redujo considerablemente; sin embargo, quienes perdieron su empleo decidieron no buscar uno nuevo, lo que ocasionó que su tasa de desempleo sólo se incrementara ligeramente. No obstante, la porción que continuó trabajando registró un deterioro importante en sus condiciones laborales, como prestaciones, informalidad o salario, especialmente para los hombres más jóvenes y con menores niveles de escolaridad.

Abstract The Covid-19 pandemic has not only affected public health, but it has also affected the macro and micro economy. The working conditions changed, especially for the young population, presenting everythin from a decrease in wages and benefits, to the closure of small businesses. The objective of this paper was to analyze the effects of these changes in people between 15 to 29 years old, in the state of Nuevo Leon. To do this, their working conditions were compared with those of adults in the state and with those of young people in the rest of the country. To do it, we use the National Occupation and Employment Survey of Q3-2019 and Q3-2020. The analysis indicates that the labor participation of this population segment of the state was considerably reduced; however, those who lost their jobs decided not to look for a new one, which caused their unemployment rate to only increase slightly. However, the portion that continued to work recorded a significant deterioration in their working conditions, such as health benefits, informality or wages, especially for younger men with lower levels of schooling.

Mycobacterium leprae Infection in a Wild Nine-Banded Armadillo, Nuevo León, Mexico.

Nine-banded armadillos (Dasypus novemcinctus) are naturally infected with Mycobacterium leprae and are implicated in the zoonotic transmission of leprosy in the United States. In Mexico, the existence of such a reservoir remains to be characterized. We describe a wild armadillo infected by M. leprae in the state of Nuevo León, Mexico.

First Record of Aedes podographicus in Nuevo León State, Mexico.

In Mexico, Aedes podographicus is one of the most common species within the subgenus Protomacleaya of Aedes. This species has been collected in 12 states close to the coastal regions; however, few records confirm the presence of Ae. podographicus inland. During a mosquito-survey using ovitraps in the state of Nuevo León, Mexico, Ae. podographicus was collected in association with Ae. albopictus and Culex quinquefasciatus. This is the first record of the presence of Ae. podographicus in Nuevo León. With the addition of Ae. podographicus to the mosquito fauna of Nuevo León, there are currently 66 species in the state, 19 within the genus Aedes and 6 within the subgenus Protomacleaya, the genus Aedes being the group with the major number of species in Nuevo León. Specimens collected during this study were deposited in the collection of insects and mites of medical importance of the Laboratory of Medical Entomology of the Autonomous University of Nuevo León, Mexico.

Genetic diversity of HLA system in two populations from Nuevo León, Mexico: Monterrey and rural Nuevo León.

We studied HLA class I (HLA-A, -B) and class II (HLA-DRB1, -DQB1) alleles by PCR-SSP based typing in 665 Mexicans from the state of Nuevo León living in the city of Monterrey (N = 226) and rural communities (N = 439), to obtain information regarding allelic and haplotypic frequencies. We find that the most frequent haplotypes in the state of Nuevo León include 12 Native American and three European haplotypes. Admixture estimates revealed that the main genetic components in the state of Nuevo León are Native American (54.53 ±â€¯0.87% by ML; 48.88% of Native American haplotypes) and European (38.67 ±â€¯4.06% by ML; 32.59% of European haplotypes), and a less prominent African genetic component (6.80 ±â€¯4.30% by ML; 8.26% of African haplotypes).

Current knowledge on Mexican tardigrades with a description of Milnesium cassandrae sp. nov. (Eutardigrada: Milnesiidae) and discussion on the taxonomic value of dorsal pseudoplates in the genus Milnesium Doyère, 1840.

Mexico is a megadiverse country, however its tardigrade fauna is poorly known and to date 44 species have been reported from this region. In the present paper, an update of the reported Mexican tardigrades is presented, increasing the number of recorded tardigrades to 55 species (11 new records). Moreover, we describe Milnesium cassandrae sp. nov. from State of Nuevo León in northern Mexico. The new species is most similar to Mil. krzysztofi Kaczmarek Michalczyk, 2007 and Mil. beasleyi Kaczmarek, Jakubowska Michalczyk, 2012, but it differs from them mainly by details of the dorsal sculpture and some morphometric characters. We also discuss the taxonomic value of a recently described feature, 'pseudoplates', for differentiating the taxa within the genus Milnesium Doyère, 1840. [Zoobank URL: urn:lsid:zoobank.org:act:0684AE18-0510-4F7B-B75D-AE5177FBF2A2].

A new genus and three new species of noctuid moths from western United States of America and Mexico (Lepidoptera, Noctuidae, Noctuinae, Eriopygini).

The genus Rhabdorthodes gen. n. is described for three previously unnamed noctuid moths from the mountains of south-western United States and Mexico. It is assigned to subfamily Noctuinae, tribe Eriopygini. Rhabdorthodespattersoni sp. n. from the United States and Rhabdorthodesdurango sp. n. and Rhabdorthodespetersoni sp. n. from Mexico are described. These moths are small, dull gray brown, and lack highly diagnostic wing markings, but are distinctive structurally. The adults and genitalia of both sexes are illustrated and distribution maps are presented. Two species eponyms honor persons who have facilitated the study and enjoyment of moths in North America by creating moth-specific websites.

Modelo pedagógico para desarrollar la identidad cultural / Educational model to develop cultural identity

La identidad cultural ha sido abordada desde diferentes disciplinas científicas, se va construyendo desde disímiles ángulos, de aquí que los referentes teóricos para su estudio procedan de diversas áreas del saber. Aunque no es un tema exclusivamente latinoamericano, es justamente América Latina uno de los lugares en que el análisis de esta problemática ha sido más polémico. El artículo presenta los resultados de un diagnóstico del estado de la identidad cultural de los estudiantes de la Preparatoria No.1, de la Universidad Autónoma de Nuevo León, y propone un modelo pedagógico para el desarrollo de este fenómeno.

Cultural identity has been studied from different scientific disciplines and considered from various perspectives. The theoretical references of its study come from diverse areas of knowledge. Being not exclusively a Latin American theme, Latin America is exactly one of the places that provide a controversial analysis. This article deals with the results of a study on cultural identity in students registered in the Preparatory n. 1, at the Autonomous University of Nuevo Leon, and presents an educational model for its development.

New species and records of ortholasmatine harvestmen from México, Honduras, and the western United States (Opiliones, Nemastomatidae, Ortholasmatinae).

The genus Trilasma Goodnight & Goodnight, 1942 is reinstated for Mexican ortholasmatines, and Cladolasma Suzuki, 1963 is reinstated for two species from Japan and Thailand, Cladolasma parvula Suzuki, comb. n. and Cladolasma angka (Schwendinger & Gruber), comb. n. Eight new species in the subfamily Ortholasmatinae Shear & Gruber, 1983 are described, as follows: Ortholasma colossussp. n. is from California, Trilasma tempestadosp. n., Trilasma hidalgosp. n., Trilasma trispinosumsp. n., Trilasma ranchonuevosp. n., Trilasma petersprouseisp. n. and Trilasma chipinquensis, sp. n. are from México, and Trilasma tropicumsp. n. from Honduras, the farthest south for a dyspnoan harvestman in the New World. A new distribution record for Martensolasma jocheni Shear 2006 is given. The recently described Upper Cretaceous amber fossil Halitherses grimaldii Giribet & Dunlop 2005 is not a member of the Ortholasmatinae, but is likely a troguloidean of an undiagnosed family.

Primer informe de Ascaridia dissimilis (SECERNENTEA: ASCARIDA) en guajolote silvestre Río Grande de Nuevo León, México / First Report of Ascaridia dissimilis (SECERNENTEA: ASCARIDA) in Rio Grande wild turkey of Nuevo Leon, Mexico

The health risk of wildlife management programs especially focusing on introducing or mobilization populations, has not been properly evaluated in Mexico. The importance of this study was to identify the potentially disease-causing nematode species carried by a Rio Grande wild turkey (Meleagris gallopavo intermedia) population introduced from Texas to Nuevo Leon, Mexico ten years ago. Twenty eight digestive tracts of adult males donated by hunters during the game season (March-April) from 2000 through 2003 were analyzed. Thirty seven individuals of the nematode Ascaridia dissimilis (Family: Ascaridae) were found. They were fixed, transparented and mounted using the routine techniques. No other nematode species were found. It is rejected the presence of Heterakis gallinarum, potential transmitter of Histomona meleagridis (histomonosis or black head disease). This is the first report of Ascaridia dissimilis for Rio Grande wild turkey of Nuevo Leon, Mexico.

El riesgo sanitario de los programas de manejo de fauna silvestre, en cuanto a la introducción y movilización de poblaciones, no ha sido evaluado adecuadamente en México. La importancia de este estudio fue identificar las especies de nematodos potencialmente patógenas en una población de guajolote silvestre Río Grande (Meleagris gallopavo intermedia) introducida de Texas, Estados Unidos de América a Nuevo León, México, hace diez años. Se analizaron 28 tubos digestivos de machos adultos donados por cazadores durante la temporada cinegética (marzo-abril) de 2000 a 2003. Se localizaron 37 individuos del nematodo Ascaridia dissimilis (Familia Ascaridae), que fueron fijados, transparentados y montados utilizando técnicas de rutina. No se encontraron otras especies de nematodos. Se descarta presencia de Heterakis gallinarum, transmisor potencial de Histomona meleagridis (Histomonosis o Cabeza negra). Este es el primer informe de Ascaridia dissimilis para guajolote silvestre Río Grande de Nuevo León, México.

Presencia de animales seropositivos al síndrome reproductivo y respiratorio porcino en Nuevo León / Presence of seropositive animals to the porcine respiratory and reproductive syndrome virus in Nuevo Leon

A preliminary study was carried out to obtain serological evidence of the presence of the porcine respiratory and reproductive syndrome (PRRS) virus and the risk of infection in different areas and phases of production in five full cycle pig farms in the state of Nuevo Leon, Mexico. Sixty blood samples of each farm were obtained (10 for each phase of production: weaning, growing, finishing, pregnancy, lactation and mating-service). The detection of antibodies against the PRRS virus was carried out using a commercial kit. All farms were positives in all phases of production. The highest seroprevalences were found in the growing and finishing phases (36% y 56%, respectively).

Se realizó un estudio preliminar para obtener evidencia serológica de la presencia del virus del síndrome respiratorio y reproductivo porcino (PRRS, por sus siglas en inglés) y del riesgo de infección en las diferentes áreas y etapas de producción en cinco granjas porcinas de ciclo completo en Nuevo León, México. Se obtuvieron 60 muestras de sangre de cada granja (diez para cada etapa de producción: destete, iniciación, finalización, cerdas gestantes, lactando o en monta-servicio). La detección de anticuerpos antivirus del PRRS se realizó utilizando un equipo comercial. Todas las granjas resultaron positivas en las diferentes etapas de producción. La seroprevalencia fue mayor en las etapas de inicio y finalización (36% y 56%, respectivamente).