Previously positive lymphocyte transformation test (LTT) results changed to negative during influenza infection. As observed in the current article, results of LTT may be influenced by infection; therefore, it is crucial to consider the timing of LTT.
Keywords: DLST; Th1; Th2; influenza; lymphocyte transformation test.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.