Estimating age-specific vaccine effectiveness using data from a large measles outbreak in Berlin, Germany, 2014/15: evidence for waning immunity.

ConclusionVE for MCV2 was generally high, but lower in those aged 31-42 years old. The estimated proportion with MCV2 should have led to sufficient herd immunity in those aged 31-42 years old. Thus, lower VE cannot be fully explained by natural immunity, suggesting presence of waning immunity. PMID: 31039834 [PubMed - in process]

https://www.ncbi.nlm.nih.gov/pubmed/31039834?dopt=Abstract

Source: Euro Surveill - March 31, 2019 Category: Infectious Diseases Authors: Bitzegeio J, Majowicz S, Matysiak-Klose D, Sagebiel D, Werber D Tags: Euro Surveill Source Type: research