www.sciencedaily.com
Cotton leafroll dwarf virus, once thought to be a recent invader, has been hiding in U.S. fields since at least 2006, according to new research. By reanalyzing old genetic data, scientists discovered the virus quietly spread across major cotton-growing states long before its official identification. The study confirms its first appearance in California and reveals traces in animal feed, highlighting a prolonged, hidden history that challenges previous assumptions.
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