Exhibit 23.1 Consent of Independent Accountants We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of T Cell Sciences, Inc. of our report dated March 25, 1998 appearing in the Annual Report on Form 10-K for the year ended December 31, 1997. /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Boston, Massachusetts August 21, 1998