Intraseason decline in influenza vaccine effectiveness during the 2016 southern hemisphere influenza season: A test-negative design study and phylogenetic assessment.

DISCUSSION: Overall, the 2016 influenza vaccine showed good protection against laboratory-confirmed infection among general practice patients. Results by duration of vaccination suggest a significant decline in effectiveness during the 2016 influenza season, indicating immunization close to influenza season offered optimal protection. PMID: 30952499 [PubMed - as supplied by publisher]

https://www.ncbi.nlm.nih.gov/pubmed/30952499?dopt=Abstract

Source: Vaccine - April 1, 2019 Category: Allergy & Immunology Authors: Regan AK, Fielding JE, Chilver MB, Carville KS, Minney-Smith CA, Grant KA, Thomson C, Hahesy T, Deng YM, Stocks N, Sullivan SG Tags: Vaccine Source Type: research