The germ assumption?
Answer:
Theory yes, if they were smart plenty,
Proof no, not without a microscope to see such pathogens.
You can't wager on up theory short proof, just as you can't stern up proof without opinion, Galileo was locked away because he have theory and no proof and within 'days of old' whoever concocted 'germ theory' would have be locked away in like sense. But thereagain Galileo was locked away because of the church, when it comes to tablets, if there be a 'germ theory' im sure somebody would invent an object to prove it, so any way the microscope would of be invented.
probably.Observation and logic.
Though no one seriously disputes the Germ Theory outright, near are some who believe that it is incomplete as a theory of disease. The most commonly cited basis is the clinical inaccuracy of the 3rd of Koch's postulates, which states that any susceptible animal infected with a pathogenic microbe should express symptoms. Koch himself following recanted this postulate after evidence showed asymptomatic carrier of typhoid and cholera.
In olden days infant deaths contained by Indian villages be referred to as
Deaths due to invisible insect stings.