ur father has TB + diabetes
its very common problem
and diabetes is the most common comorbidity with TB
need not to worry
u have to start anti=TB drugs with proper category and proper dosage
for diabetes part ur father must have
insulin never oral hypoglycemic agent as long as TB treatment continues
ur father most probably 2+ in sputum
so his TB is grossly infectious
but it is not need to isolate him
because it is no longer a social stigma
keep ur father in a well ventilated room
clean ur father's dress and beddings everyday
tell him to put his sputum in a separate container
if possible ur father should use a mak
avoid same bed sharings atleast in the 1st 2 months of the treatment
i think u got my point
thank u