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'The Walking Dead' recap, 'Infected'

'The Walking Dead' recap, 'Infected'

Some episodes of "The Walking Dead" inspire discussion by killing off main characters and twisting the plot; others, like Sunday night's episode, "Infection," pique fan interest by raising questions about the nature of the disease that has turned the planet into hell on earth.

Young, nerdy, bespectacled Patrick (played by Phineas of "Phineas and Ferb", Vincent Martella) started feeling kind of rough last week, before gacking all over the community water supply and croaking in the communal shower. Patrick woke up this week and caused mischief, starting a mini zombie outbreak within the rickety fences of the prison.

So basically, there are zombies...