28 Days Later

The start of my favourite zombie franchise (and one of my favourite franchises ever). Yeah, this film is great but I had one question, you really expect me to believe that hes been in one place for 28 days and none of the infected found him? Also at the start, the scientist couldve just said the animals had rabies but he decided to aura farm and say, 'Rage.', like this never had to happen.