Immunization Newsletter, v.43, n.4, Dec. 2021 

IN THIS EDITION: Dr. Cuauhtémoc Ruiz Matus, a Life Dedicated to Public Health | What We Have Learned from John Fitzsimmons | Cuauhtémoc Ruiz Matus: A Leader for Immunization in the Americas and in Times of COVID-19 | PAHO’s Doctor Cuauhtémoc Ruiz Matus Awarded for Achievements in Health | CDC Celebrates 15 Years of Collaboration with PAHO’s Doctor Cuauhtémoc Ruiz | A Tribute to Doctor Cuauhtémoc Ruiz Matus | My experience working with Dr. Cuauhtémoc Ruiz Matus |