I’m wondering if these were fruit bats, which if I recall are the only ones that don’t make their own Vitamin C, which if true, has interesting implications.
Horseshoe bats make their own Vitamin C. They are also riddled with Prevotella bacteria. The Corona virus lives in the Prevotella in the bat and its innate Vitamin C generation protects the bat from the Corona virus attacking its organs.
Humans are incapable of making vitamin C. We must take it. We also have Prevotella bacteria in oral, nasal, gut, lung, and vaginal surfaces. Since we lack innate vitamin C generation, SARS-CoV-2 is free to infect any of our cells with ACE2, CD4, CD147 receptors as well as our Prevotella colonies. A bloom of Prevotella in the presence of sugar and reduced oxygen provides significant additional growth substrate for SARS-CoV-2.