The CDC is currently investigating a rare case of highly pathogenic avian influenza (H5N1) in Missouri, that was reported a few weeks ago. CDC officials are working on partial sequencing of the virus, which is challenging due to the low levels of viral RNA detected in the patient’s sample. Additionally, the virus has two notable mutations that may affect how the immune system responds to it. The investigation into how the patient contracted the virus been a mystery including interviews with household members, revealing a symptomatic individual living in the same home at the same time, but this person has not tested positive for H5N1.
While the Missouri case remains isolated, there have been 16 confirmed cases of H5N1 in the U.S. this year, mostly linked to direct contact with infected farm animals. Ongoing surveillance and mandatory testing in states like Colorado have shown promise in controlling H5N1 in dairy herds, leading to a significant reduction in affected farms. The CDC expects to report findings from the testing of healthcare workers who interacted with the Missouri patient later this month, emphasizing rigorous scientific methods to ensure accurate results despite the complexities involved.
Photo Credit: The USDA
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