-- Posted by Anonymous at 8:58 pm on July 18, 2008 Is it possible to catch MRSA (Mersa, Staph) for a second time, if you already had it once and it was fully treated and resided for a few months? -- Posted by frank murray at 9:02 pm on July 18, 2008 u will always have it in your life time -- Posted by missmadejavu at 9:30 pm on July 18, 2008 Yes it is possible.