Testing

<p>From: 'Chronic Fatigue Syndrome, A Roadmap for Testing and Treatment'&nbsp;<a href="https://sites.google.com/site/cfstestingandtreatmentroadmap/home">https://sites.google.com/site/cfstestingandtreatmentroadmap/home</a>

Note that ME/CFS may arise after an acute parvovirus B19 infection; however, attributing a particular case of ME/CFS to parvovirus may be extremely difficult without a positive parvovirus blood test taken at the onset of fatigue, when the parvovirus infection was still in its acute phase.<a href="http://www.ncbi.nlm.nih.gov/pubmed/11911112" rel="nofollow" target="_blank" >1</a></p>