why av can not find a treat?

my comodo runs well,on the internet i use only bbs ,games, net purchasings ,email, just that.

i am new to the comodo,just six month,just before i was a fan of trend.

now ,i can not find a virus or treat.

could be comodo pfw and defense+ so powerful and smart.

errr, you’re asking why you don’t get infected? ???