Note: I have been going to caves a lot, mostly to meditate. In Santa Cruz California I used to go to small caves with no bats. In PR i went to Mona Island huge caves and most do not have bats - due to mining in the past. There was one were bats returned and i went into it by mistake. Immediately i turned back when i smelled the incredibly awful smell of bat urine and excrement ... like a bombshell to my nose!
Because of this and the many caves in PR with hundreds of thousands of bats (they are in the Mogotes, a limestone formation that is about 30% of the island and is mostly unpopulated - all small mountains and caves) I have heard about this cave illness documented here.
A Desperate Government
The China Govt in its desperation to bring millions out of poverty, allowed an un-monitored and uncontrolled market of wild animals to flourish to the tune on hundreds of millions and possibly billions, since there is a weakness they exploited in that culture for products that promote longevity and sexual health.
Thus by promoting all those rare species or their parts (like horns etc) they made lots of sales. With the 'placebo' effect many could believe the products did work!
Now cave explorers know of strange illnesses that can come from bats urine and feces, and then from molds on them since they are in a dark moist cave - ideal for bacterial and fungus growth.
This illness is called 'histoplasmosis' and is very similar to coronavirus. Just from here is was known to a few that animals like bats are very, very dangerous.
Now in the Wuhan market
Now in the Wuhan market some rare animals were infected from bats or their excrement (since cages where on top of each other). The the virus that came to be known as Covid 19 mutated in the animal and developed the capacity to enter and grow in humans via the air droplets in the mucus membranes.
Then like the histoplasmosis below, many were asymptomatic and just spread the illness - into what was eventually an exponential growth.
Bat cave–associated outbreaks have occurred in Florida, Texas, and Puerto Rico.
H. capsulatum grows as a mold in nature or in culture at room temperature but converts to a small (1 to 5 micrometers in diameter) yeast cell at 37° C and during invasion of host cells. Infection follows inhalation of conidia (spores produced by the mycelial form of the fungus) in soil or dust contaminated with bird or bat droppings. Risk of infection is greatest when tree or building removal generates airborne spores (eg, at construction sites in areas habituated by birds or bats) or when exploring caves.
Risk factors for severe histoplasmosis include
Heavy, prolonged exposure
Age ≥ 55 years
Compromised T-cell–mediated immunity (eg, in those who have HIV/AIDS or an organ transplant or who are taking immunosuppressants such as corticosteroids or tumor necrosis factor inhibitors)
Initial infection occurs in the lungs and usually remains there but may spread hematogenously to other organs if it is not controlled by normal cell-mediated host defenses.
Progressive disseminated histoplasmosis is one of the defining opportunistic infections for AIDS.