Two new reports out of South Africa are offering some early insights into how the Omicron variant could behave in humans. One report speculates the disease may be milder than prior variants, while another indicates Omicron may lead to more reinfections.

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A new meta-study has concluded blood or saliva THC concentrations are not effective ways to measure cannabis-induced driving impairment. The findings indicate impairment tests should be developed instead of looking to develop a marijuana breathalyzer.

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New research from the Icahn School of Medicine at Mount Sinai has identified a link between long COVID and chronic fatigue syndrome, adding to a growing understanding of the overlap between the two illnesses.

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The hypothesis that gut health influences autism has been turned on its head by a new Australian study. Rather than playing a causal role, the study suggests these microbiome differences are the result of restricted diets associated with autism.

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A new study in The Lancet is offering the first peer-reviewed and published data on the efficacy of Covaxin, a COVID-19 vaccine developed in India. The vaccine was 77.8 percent effective at preventing symptomatic COVID-19 in a Phase 3 clinical trial.

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A study comparing the effectiveness of three COVID-19 vaccines over eight months found protection from infection declined but protection from death remained strong. Tracking 800,000 US Veterans, the study found the J&J vaccine showed the greatest decline.

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An endorsement by Rochelle Walensky, director of the US CDC, is the final regulatory hurdle to be overcome allowing a special pediatric formulation of Pfizer's mRNA vaccine to be administered to children across the United States.

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New research has found no evidence statin use can reduce the risk of severe COVID-19 or death. Countering studies suggesting statins may protect against severe COVID-19, the study indicates statins could slightly increase the risk of serious illness.

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A first-of-its-kind study has measured levels of plasticizer chemicals in a number of fast food products. The findings reveal high concentrations of a number of potentially harmful chemicals, such as phthalates, in almost all samples studied.

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A new paper has investigated the effects of poor sleep on newborns, finding that sound slumber during the first few months of life can be an important factor in preventing excessive weight gain during this early formative period.

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