Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein9300, SA.
Published: February 2022
AI Article Synopsis
Article Abstract
Presently, the second wave of COVID-19 pandemic is driving the world towards a devastating total failure of the healthcare system. The purpose of the review is to search for the studies reporting on the implication of herd immunity into a naïve population through age specific mass vaccination. This review is based on selected publications on the effect herd immunity to COVID 19 in communities. We searched published scientific articles, review articles, reports, published in 2020 as well as read some basic, cult publications related to establishment of indirect immunity to a population. We have focused on use of application of vaccine induced herd immunity into community to confer indirect immunity against COVID-19 and searched on electronic databases, including PubMed (http://www.pubmed.com), Scopus (http://www.scopus.com), Google Scholar (http://www.scholar.google.com), Web of Science (www.webofscience.com) and Science Direct by using key words such as Herd immunity, indirect or passive immunization, Coronavirus disease 2019 (COVID-19), severe acute respiratory syndrome, coronavirus 2 (SARS-CoV-2), and immune-technique. This review proposes the implication of mass vaccination-induced herd immunity in a population to curb the infection, and to every individual in a given population irrespective of their age.
Background: Invasive meningococcal disease (IMD) is a life-threatening disease, primarily affecting infants and children. Argentina introduced routine meningococcal vaccination in infants and adolescents in 2017, with MenACWY vaccination targeting serogroups A, C, W, and Y (current National Immunization Program [cNIP]). Serogroup B, more prevalent since 2015, became predominant in children.
A world free of dog-mediated human rabies by 2030 would be an outstanding achievement. This ambitious goal for a neglected tropical disease, set by the World Organisation for Animal Health (WOAH), the World Health Organization, the Food and Agriculture Organization of the United Nations and the Global Alliance for Rabies Control together with partners and countries, has a clear and achievable pathway to success. In the 100 years since the inception of WOAH, many scientific tools have been developed to support the elimination of dog-mediated rabies.
Incomplete or interrupted vaccination schedules put migrant communities at higher risk for measles, which remains a serious public health concern. The objective of this systematic review was to evaluate the pooled seroprevalence of measles antibodies among migrant groups globally and offer data to guide public health initiatives. Our literature search included PubMed, Scopus, and Embase databases, covering publications from 1990 to 2023, and was systematically refined using specific inclusion and exclusion criteria.
Importance: Childhood vaccination rates have declined in recent years; there is also concern that resistance to COVID-19 vaccines could spill over to childhood vaccines.
Objectives: To use local-level data to study trends in childhood vaccination rates and heterogeneity in local rates; including how many areas are below herd-immunity thresholds, and assess the association between COVID-19 vaccine hesitancy and childhood vaccination.
Design: We report, for 11 states with available data, vaccination rates for measles, mumps, rubella (MMR), and diphtheria, tetanus, acellular pertussis (DTaP) vaccines, including percentage of schools/counties with rates ≥95 %, 90-95 %, 80-90 %, and < 80 %.
Department of Microbiology, Institute for Immunology and Immunological Diseases, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, South Korea.
Vaccines are an effective way to prevent the emergence and spread of antibiotic resistance by preventing diseases and establishing herd immunity. However, the reduced effectiveness of vaccines in the elderly due to immunosenescence is one of the significant contributors to the increasing antibiotic resistance. To counteract this decline and enhance vaccine effectiveness in the elderly, adjuvants play a pivotal role.
