 The Chase family is in state of emergency when Penny gets the flue, so she s quarantined in the basement because last time it went around thrice ( quintuplets contagious  contracts to the title). She looks at it from the bright side, having  her own room , but then her stupid sister Paige follows, who is so addicted to gossip she pays anything for listener s time- in time that affliction also proves contagious. Pierce is so weird anyway that nobody can tell if he s affected by anything- now he wears PJs because he gets his best ideas in bed, mixes maths with English and watches TV without turning it on  just as if he had his own reality TV show . Mother breaks dad s rules by visiting them, so he locks her up too; at first she kindly tends to the kids, then gets sick herself and spiteful. The other boys don t want it to get known, but Parker is next struck down and sequestered. When the younger boys follow, dad finally has the house to him alone and forgets all about his urgent business.