 REHOVOT, Israel, Jan. 18, 2021 GLOBE NEWSWIRE -- Purple Biotech Ltd. Purple Biotech NASDAQTASE: PPBT, a clinical-stage company advancing first-in-class therapies to overcome tumor immune evasion and drug resistance, today announced that the Purple Biotech management team will present a corporate overview at the B. Riley Oncology Investor Conference, being held virtually January 20-21, 2021. 