SARS-CoV-2 Infections in Vaccinated and Unvaccinated Populations in Camp Lemonnier,Djibouti, from April 2020 to January 2022

The global pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has highlighted the disparity between developed and developing countries for infectious disease surveillance and the sequencing of pathogen genomes. The majority of SARS-CoV-2 sequences published are from Europe, North America, and Asia. Between April 2020 and January 2022, 795 SARS-CoV-2-positive nares swabs from individuals in the U.S. Navy installation Camp Lemonnier, Djibouti, were collected, sequenced, and analyzed. In this study, we described the results of genomic sequencing and analysis for 589 samples, the first published viral sequences for Djibouti, including 196 cases of vaccine breakthrough infections. This study contributes to the knowledge base of circulating SARS-CoV-2 lineages in the under-sampled country of Djibouti, where only 716 total genome sequences are available at time of publication. Our analysis resulted in the detection of circulating variants of concern, mutations of interest in lineages in which those mutations are not common, and emerging spike mutations.     

Highly accurate retinotopic maps of the physiological blind spot in human visual cortex

The physiological blind spot is a naturally occurring scotoma corresponding with the optic disc in the retina of each eye. Even during monocular viewing, observers are usually oblivious to the scotoma, in part because the visual system extrapolates information from the surrounding area. Unfortunately, studying this visual field region with neuroimaging has proven difficult, as it occupies only a small part of retinotopic cortex. Here, we used functional magnetic resonance imaging and a novel data‐driven method for mapping the retinotopic organization in and around the blind spot representation in V1. Our approach allowed for highly accurate reconstructions of the extent of an observer’s blind spot, and out‐performed conventional model‐based analyses. This method opens exciting opportunities to study the plasticity of receptive fields after visual field loss, and our data add to evidence suggesting that the neural circuitry responsible for impressions of perceptual completion across the physiological blind spot most likely involves regions of extrastriate cortex—beyond V1.     

Mycosis mucorina

Ohne ZusammenfassungHierzu Taf. VI.     

Beiträge zur Anatomie des miliaren Tuberkels

Ohne Zusammenfassung     

Ueber eine abnorme Lagerung der Clarke'schen Säulen im Rückenmarke

Ohne Zusammenfassung     

Zur Kenntniss der Saftbahnen des Bindegewebes

Ohne ZusammenfassungHierzu Taf. IX–X.     

Beschreibung einer Missbildung mit Agnathie und Hydropsie der gemeinsamen Schlundtrommelhöhle

Ohne ZusammenfassungHierzu Taf. II. u. Taf. III. Fig. 1–3.     

Ueber die Krause'schen Endkolben

Ohne ZusammenfassungEine Antwort auf C. Lüdden's Nachuntersuchungen.