<prompt> Number of for tubercle bacilli if count in AFB sample is 10 per oil immersion fields?..Scanty  <response>: - the number of bacilli seen in a smear reflects disease severity and patient infectivity. - therefore , it is impoant to note the number of bacilli seen on each smear. - more than 10 acid fast bacilli per oil immersion field is repoed as 3. Reference : Parks textbook of preventive and social medicine, 23rd edition, pg no:182 p 