When H5N1 avian influenza started spreading among dairy cattle across the U.S. this year, regulators warned against consuming unpasteurized milk. What happened? Raw milk sales went up.
Distributors of this unsafe-for-human-consumption product deny H5N1—which has the potential to sicken millions of people—is a danger. Dairy farmers decline to allow disease detectives onto their properties.
Don’t take it from me, here is the literal CDC Facebook page telling people in Feb 2020 not to wear masks. And here is a scientific paper analyzing comments on their Facebook page comparing reactions of citizens to that Feb 2020 announcement, and the later April 2020 announcement where they did recommend masks. The paper explores lessons public health officials can learn from the failed messaging, it’s important to learn what we can so we’re ready for the next one. I do believe they were doing their best but this messaging was a mistake and it absolutely contributed to the confusion around this virus early on.
CDC Facebook: https://www.facebook.com/cdc/posts/pfbid02f4JBbsKWeEvZe1c6V1Gsvs1jDixoH9qRpwonebiY4QtaJGVaXs9K4FnNqB91cAm3l?__cft__[0]=AZWtQDpU3TRZ9RTLJrbXWOi98FW5DhWq8Uskn3vssi5Eh_t3VEgPvRH2NGGcIJrcpVwGLFBS-lk3i80XNb7v9dR_N2knM_cpoGlnaIB32ak2QhdrBzTxiC_xSYgwGTTLxc-DYG_nCjemFllecZwyR2vo&__tn__=%2CO%2CP-R
Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10298096/#B3-ijerph-20-06062
This literally says exactly what I just did. Wearing a mask will not protect you from getting covid or any other disease but it can protect other people from catching it from you by stopping you from spreading it.
P.S. and yes, at the time healthcare professionals needed the masks desperately so that they could administer to patients without the fear of spreading the disease all over the place if they caught it because COVID has such a long incubation period that overlaps significantly with its shedding phase.