The content originally appeared on: Trinidad and Tobago Newsday News A sign about Pfizer vaccines at the Ato Boldon vaccination site in Couva. - File photo/Lincoln Holder A batch of over 40,000 Pfizer vaccines may become pharmaceutical waste if they are not used before their June 30 expiration date. At the Ministry of Health’s virtual press conference on Wedenesday, the minister, Terrence Deyalsingh said 40,762 doses were left from a donation of 75,000 from the US on March 3. He […]