Dr. Mike is back with a bonus episode nobody scheduled, because the screwworm did not check our calendar. The New World screwworm has arrived in the United States for the first time in sixty years, confirmed in Texas and New Mexico, with a quarantine zone now covering fourteen Texas counties. While livestock take the hardest hit, cats are absolutely at risk, because the fly lays her eggs in any open wound, and even a small scratch or post-surgical incision is enough of an invitation. The saving grace is that a year of preparation preceded this moment, with FDA emergency use authorizations now covering cats, including Credelio Cat and NexGard COMBO, and most recently a generic over-the-counter nitenpyram option that kills larvae within hours. Dr. Mike explains what living in the affected zone actually means for your cat, and whether the screwworm’s steady northward march through Central America and Mexico is likely to continue up the map. We also cover the other infection keeping feline medicine on its toes: H5N1 in cats. More than 130 feline cases of highly pathogenic avian influenza H5N1 have been confirmed across the United States, from barn cats to strictly indoor pets, and cats appear to be exquisitely sensitive to the virus. The mortality rate sits somewhere between fifty and seventy percent, and whether infected cats can pass the virus to other cats remains an open and uncomfortable question. Two infections, one episode, and a very compelling argument for keeping your cat’s wounds clean and your raw milk off the menu. Do not miss this one.miss.
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