A strange pulmonary sickness first appeared in Russia in 1889 and subsequently propagated around the world, causing at least several outbreaks of infectious disease over all of the period of many decades. Numerous experts believe the sickness, called the Russian flu, was triggered by a disease outbreak coronavirus identical to SARS-CoV-2, the viral infection that tends to generate COVID-19.
University of California, Davis and Rice University researchers discovered a previously unknown energy metabolism in lactic acid bacteria, essential in creating fermented foods. The species Lactiplantibacillus plantarum was found to have used a single pathway that "simultaneously blends features" of fermentation and respiration in the primarily fermentative microbe.