From your description, I agree it is unlikely your wife has acquired herpes. The symptoms sound
atypicalAtypical pneumonia and the blood tests are negative. She had the wrong tests (see next paragraph), but the negative results nevertheless are reassuring.
Your wife had outmoded, unreliable HSV blood tests. How do I know? The only blood tests that are accurate for diagnosis are not available in IgG and IgM versions. She should tell her doctor she wants a test with the Focus (brand name) HSV-2 blood test, currently the only one on the market that is truly accurate. If that’s negative, it will confirm virtually 100% she doesn’t have HSV-2.
Don't blame the doctor too much for using the wrong test. Research has been progressing rapidly in recent years, and the Focus test only recently became widely available; your doctor and the lab s/he uses may be only a
littleLittle noses decongestant
Little tummys behind the times. Still, they should know they are using a lousy test that easily leads to misdiagnosis.
I think this is all going to turn out all right. Best wishes-- HHH, MD