Antivaccine activists and pandemic minimizers Del Bigtree and Joe Mercola are promoting the myth of the “casedemic” that claims that the massive increase in COVID-19 cases being reported is an artifact of increased PCR testing and false positives due to too sensitive a threshold to the test. As they have done for vaccines and vaccine-preventable diseases many times before, they are vastly simplifying and exaggerating a scientific controversy to cast doubt on the scope and deadliness of the pandemic.