Joint study conducted by scientists at Global Lyme Alliance (GLA) and Brown University estimates that two million people in the United States could suffer profound disability from post-treatment Lyme disease syndrome (PTLD) by the year 2020.
Published in BMC Public Health: https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-019-6681-9
PubMed: https://www.ncbi.nlm.nih.gov/m/pubmed/31014314/