Persistent immune activation and elevated cytokine levels were observed in patients with severe COVID-19, even months after recovery. However, the correlation between immune activation and long COVID symptoms appeared to be independent, suggesting other factors influencing disease severity.
Could cow vaccines help halt the spread of bird flu in U.S. herds? Experts are divided
With the number of U.S. dairy herds infected with H5N1 bird flu rising almost daily, fears are growing that the dangerous virus cannot be driven