 Pfizer Inc. PFE, 0.29 said Tuesday it has expanded its commitment to An Accord for a Healthier World to include all of the medicines and vaccines for which it holds global rights on a not-for-profit basis to improve the health of 1.2 billion people living in 45 lower-income countries. The move increase the number of products to around 500 from an original 23 by including off-patent products. 