TY - BOOK AU - Dimla, Anjeaselle G. AU - Duzon, Camille Anne M. AU - ErmitaƱo, John Joseph Ericsson G. AU - Estrella, Patricia Charis A. AU - Fajardo, Mary Hazel Grace C. AU - Felipe, Faye Leanna N. AU - Fontamillas, Ma. Kathleen G. AU - Francisco, Cecylle Faye D. AU - Gamayot, Cendy B. AU - Geronimo, Arabella Ena L. AU - Guadilla, Russel N. AU - Huet, Allyssa Mae O. AU - Javillo, Aira Nicole M. AU - Lagasca, Rhea Abbygale S. AU - Lappay, Milligems C. AU - Lascano, Joanne Alyssa H. AU - Lesaca, Maria Luica Veronica D. AU - Llera, Kristine Joyce D. AU - Mangete, Justine D. TI - A Systematic review of vaccine strategies in relation to vaccination rates, COVID-19 cases, fatalities and facilities & vaxxed check! : : bakunado ka na ba? / AV - M CFM 2022 0026 PY - 2022/// CY - Fairview, Quezon City PB - Department of Community and Family Medicine, FEU-NRMF N1 - Includes appendices and bibliographical references; THDCFM N2 - Abstract: The COVID-19 pandemic has significantly posed a health and economic crisis globally. It has prompted the countries' government administration to immediately take action in addressing the abrupt of positive cases affecting the majority of their countries' population. Since the first vaccine was approved for public use in December 2020, countries have begun implementing their plans, strategies, and national vaccination campaign with the goal of protecting their citizens from the more serious adverse effects of COVID-19. This study aims to determine the effect of vaccine strategies in relation to covid vaccination rates, covid cases, fatalities and facilities data. This systematic review used available English-language guidelines, research articles, and databases regarding mass-vaccination for COVID-19 from December 2020 until November 2021. The data were extracted from official government websites, publications, PubMed, MDPI, Crossref and Google Scholar, including peer and non-peer review research findings. An online application called Rayyan was used to screen the articles that were extracted from the databases, and the rest was manually screened for journals that are eligible for this study. Unlike when vaccines were first released for public use, there are more policies following an age-based prioritization protocol instead of a risk-based one. Limited information was available about staffing, transport, and strategies regarding vaccine delivery, as well as facilities and bed occupancy. 58 research studies and 27 grey literatures were extracted, reporting vaccination programs, reports about vaccine hesitancy and proposals on how to best counter that issue, adverse effects, and estimates of efficacy. Data showed that while cases in some countries remain high despite a high vaccination rate, vaccines were able to show a reduction in SARS-CoV-2 cases, hospitalizations, and deaths in settings with high vaccination rate even if a portion of it is only partially vaccinated. Vaccine hesitancy is the most common challenge faced in most vaccination programs. Aside from the confirmed association of idiopathic thrombocytopenic purpura and increased risk of hemorrhagic events with the use of ChAdOx1 (AstraZeneca) vaccination, adverse events remain rare and mild ER -