REGIONAL MEMORANDUM NO. NCR 290, S. 2021. UPDATES ON VACCINATION AND THEIR IMPLICATIONS ON DEPED MEMORANDUM NO. 28, S. 2021 Posted on June 18, 2021 by DepEd Mandaluyong Leave a comment REGIONAL MEMORANDUM NO. NCR 290, S. 2021. UPDATES ON VACCINATION AND THEIR IMPLICATIONS ON DEPED MEMORANDUM NO. 28, S. 2021 Regional Memorandum Regional Office Issuances