Dealing with perceptions related to thrombosis and COVID-19 vaccines

To the Editor:To date, there have been around 178 million confirmed SARS CoV-2 infections, and more than 3 million deaths worldwide. The global war against COVID-19 has been fought mainly in three battlegrounds: the hospitals, the communities, and in the minds of people. As populations around the globe still struggle to establish or keep the public health strategies needed, they also face an infodemic, especially regarding vaccines.All vaccines can have rare adverse events, but during the pandemic, the report of isolated cases of blood clots associated to two of the anti-COVID vaccines that use adenovirus as a viral vector (AZD1222 and Johnson & Johnson) have raised concerns in the population, as well as emergency reviews, safety signals, and vaccination pauses. [...]

Dealing with perceptions related to thrombosis and COVID-19 vaccines

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Las Curvas Para Medir Circunferencia Cefálica Y Las Potenciales Diferencias Antropométricas En Latinoamérica Y El Mundo / Cephalic Circumference Curves And Potential Anthropometric Differences In Latin America And The World

Resumen La circunferencia cefálica (CC) es una medición que detecta alteraciones del crecimiento adecuado del cerebro. Las curvas de CC más utilizadas mundialmente son las propuestas por los CDC, NCHS y OMS. A pesar de las críticas sobre la metodología para crearlas, se han hecho actualizaciones para corregir inconsistencias. Esto ha servido para detectar y tratar oportunamente problemas de tamaño craneal tanto en los extremos pequeños (microcefalia) o grandes (macrocefalia). Algunos autores opinan que existe la necesidad de contar con curvas regionales para mejorar el valor diagnóstico de éstas en cada población. Otros, como Kenton Holden y colaboradores, han propuesto nuevas curvas que consolidan diferentes bases de datos con el objetivo de reducir el riesgo de errores en el diagnóstico de microcefalia o macrocefalia leve. Es necesario estudiar cuál es el patrón de crecimiento craneal normal de niños/as latinoamericanos por cada región o país, así como conocer las diferencias interétnicas.

Abstract The cephalic circumference (CC) is a measurement that detects alterations in the proper growth of the brain. CC curves most used worldwide are those proposed by the CDC, NCHS and WHO. Despite criticism of the methodology used to create them, updates have been made to correct inconsistencies, and that has helped to detect and treat on time problems of cranial size at both the small (microcephaly) and large (macrocephaly) ends. Several authors have suggested that regional reference curves should be made, and others, like Kenton Holden and colleagues, have proposed new curves that consolidate different databases, aiming to reduce the risk of errors in the diagnosis of microcephaly or mild macrocephaly. It is necessary to study what the normal cranial growth pattern of Latin American children is for each region or country, as well as to determine the interethnic differences.

Author Correction: Assembly of a pan-genome from deep sequencing of 910 humans of African descent.

In the version of this article initially published, the statement "there are no pan-genomes for any other animal or plant species" was incorrect. The statement has been corrected to "there are no reported pan-genomes for any other animal species, to our knowledge." We thank David Edwards for bringing this error to our attention. The error has been corrected in the HTML and PDF versions of the article.

Assembly of a pan-genome from deep sequencing of 910 humans of African descent.

We used a deeply sequenced dataset of 910 individuals, all of African descent, to construct a set of DNA sequences that is present in these individuals but missing from the reference human genome. We aligned 1.19 trillion reads from the 910 individuals to the reference genome (GRCh38), collected all reads that failed to align, and assembled these reads into contiguous sequences (contigs). We then compared all contigs to one another to identify a set of unique sequences representing regions of the African pan-genome missing from the reference genome. Our analysis revealed 296,485,284 bp in 125,715 distinct contigs present in the populations of African descent, demonstrating that the African pan-genome contains ~10% more DNA than the current human reference genome. Although the functional significance of nearly all of this sequence is unknown, 387 of the novel contigs fall within 315 distinct protein-coding genes, and the rest appear to be intergenic.

Aportes al inventario y caracterización de las plantas medicinales del pueblo originario Lenca de Intibucá, Honduras / Contributions to the inventory and characterization of the medicinal plants of the original Lenca de Intibucá people, Honduras

Se realiza una encuesta con los objetivos de identificar las plantas de uso medicinal, con el fin de efectuar un perfil socioeconómico y caracterizar el acceso a servicios de salud pública en ocho aldeas de los municipios de Intibucá, Yamaranguila y San Francisco de Opalaca, departamento de Intibucá, Honduras. Se encuestaron 76 personas en varias visitas realizadas durante el año 2014. El estudio fue exploratorio de alcance descriptivo, de muestreo no probabilístico, sujeto al criterio de pertenencia familiar al grupo étnico. Se identificaron 95 plantas con nombres comunes y que se referencian por su uso tradicional y empírico. Las cinco plantas de uso más frecuente fueron elapazote, la ruda, la manzanilla, el eucalipto y el liquidámbar, consistente con hallazgos de estudios anteriores. Sin embargo, hay siete plantas que aún no hemos identificado: la bambita, chorrito de humo, flor de cute, hierba de esencio, oreja de burro, doctorcito y el pascualillo. Las plantas medicinales son para el pueblo Lenca la primera opción de atención médica ante la pobreza extrema y el aislamiento.