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SARS-CoV-2 infection has been described in a wide range of species, including domestic animals such as dogs and cats. Illness in dogs is usually self-limiting, and further diagnostics may not be pursued if clinical signs resolve or they respond to empirical treatment. As new variants emerge, the clinical presentation and role in transmission may vary in animals. This report highlights different clinical presentations and immunological responses in two SARS-CoV-2 Delta-variant-positive dogs with similar exposure to the same fully vaccinated human with a SARS-CoV-2 infection and emphasizes the need for active surveillance and additional One Health research on SARS-CoV-2 variant infections in companion animals and other species.

Previous work has shown that non-invasive optical measurement of low cerebral blood flow (CBF) is an acute biomarker of poor long-term cognitive outcome after repetitive mild traumatic brain injury (rmTBI). Herein, we explore the relationship between acute cerebral blood flow and underlying neuroinflammation. Specifically, because neuroinflammation is a driver of secondary injury after TBI, we hypothesized that both glial activation and inflammatory signaling are associated with acute CBF and, by extension, with long-term cognitive outcome after rmTBI. To test this hypothesis, cortical CBF was non-invasively measured in anesthetized mice 4 h after 3 repetitive closed head injuries spaced once-daily, at which time brains were collected. Right hemispheres were fixed for immunohistochemical staining for glial activation markers Iba1 and GFAP while left hemispheres were used to quantify Iba1 and GFAP expression via Western blot as well as 32 cytokines and 21 phospho-proteins in the MAPK, PI3K/Akt, and NF-κB pathways using a Luminex multiplexed immunoassay. N = 8/7 injured/sham C57/black-6 adult male mice were studied. Within the injured group, CBF inversely correlated with Iba1 expression (R = −0.86, p

Subarachnoid hemorrhage (SAH) is a neurosurgical emergency that results from the rupture of an aneurysm in the subarachnoid space. One common complication of SAH is cerebral vasospasm, which can lead to a secondary stroke. Intrathecal (IT) Nicardipine holds promise in treating cerebral vasospasm through its direct vasodilatory effect on the cerebral vasculature. Here, we used diffuse correlation spectroscopy to continuously monitor microvascular cerebral blood flow changes in medium-high grade subarachnoid hemorrhage patients in response to the first dose of IT Nicardipine. To date, we have recruited 9 patients, 3 of whom developed a secondary stroke.

The purpose of this study is to examine the relationship among social isolation, lack of facility provision, family commitment and work from home (WFH) job stress among academicians. Data were collected from 180 respondents who were academicians who worked from home during the period of movement control order (MCO) owing to the spread of COVID-19 pandemic. Partial least square structural equation modelling (PLS-SEM) was used to analyse the data collected. The results show that all predictors, namely social isolation, lack of facilities provision and family commitment are statistically correlated to WFH job stress. The empirical findings provide additional insights in order to improve the understanding of the existing model of stress and practical implications for academicians, educational institutions/schools and the government in order to reduce/address WFH job stress effectively. In addition, the study seeks to enhance awareness and destigmatize the mental health issues of academicians due to the changes in the nature of the job, which is important to help them to maintain a healthy well-being during the pandemic crisis.

The ongoing global pandemic caused by coronavirus disease 2019 (COVID-19) has once again demonstrated the significance of the Coronaviridae family in causing human disease outbreaks. As SARS-CoV-2 was first detected in December 2019, information on its tropism, host range, and clinical presentation in animals is limited. Given the limited information, data from other coronaviruses may be useful to inform scientific inquiry, risk assessment and decision-making. We review the endemic and emerging alpha- and betacoronavirus infections of wildlife, livestock, and companion animals, and provide information on the receptor usage, known hosts, and clinical signs associated with each host for 15 coronaviruses discovered in people and animals. This information can be used to guide implementation of a One Health approach that involves human health, animal health, environmental, and other relevant partners in developing strategies for preparedness, response, and control to current and future coronavirus disease threats.

Using non-invasive diffuse correlation spectroscopy measurements of cerebral blood flow, we identify an early functional biomarker of cognitive outcome after repetitive concussion, and we explore potential pathological mechanisms of cognitive deficits.

Cognition and learning have been widely studied in vertebrates, but not across much phylogenetic breadth. Non-avian reptiles, for example, have been poorly studied. Anecdotal observations and a few previous studies suggest that lizards may have strong cognitive skills owing, in part, to behaviors such as optimal foraging and territoriality. We tested four lizard species, including three species of monitor lizard (Varanus spp.) and one species of beaded lizard (Heloderma), in a longitudinal, repeated-trials experimental design using a puzzle-feeder device to evaluate learning, in the form of latency trends over time. We used a Bayesian multilevel modeling statistical method and incorporated unsuccessful trials as censored data. Collectively, all lizards showed a pattern of decreasing latencies over time. We interpret this pattern as learning among our lizards. Notable individual and inter-specific differences were evident, however, suggesting that learning abilities differed among the lizards. In this case, the monitor lizards exhibited steeper declines in latencies and greatly reduced inter-individual variation in comparison to the beaded lizards. Finally, we found differential use of the claws versus the snout among the lizards, which is consistent with a previously posed hypothesis based on different species than we measured.