Mechanistic Models of Influenza Transmission in Commercial Swine Populations: A Systematic Review

被引:0
作者
Ratterree, Dana C. Pittman [1 ]
Dass, Sapna Chitlapilly [2 ]
Ndeffo-Mbah, Martial L. [1 ]
机构
[1] Texas A&M Univ, Sch Vet Med & Biomed Sci, Dept Vet Integrat Biosci, College Stn, TX 77843 USA
[2] Texas A&M Univ, Coll Agr & Life Sci, Dept Anim Sci, College Stn, TX 77843 USA
来源
PATHOGENS | 2024年 / 13卷 / 09期
基金
美国农业部;
关键词
influenza; swine; mechanistic model; mathematical modeling; A(H1N1)PDM09 VIRUS-INFECTION; A VIRUS; AGRICULTURAL FAIRS; A(H3N2) VIRUS; C VIRUS; PIGS; SURVEILLANCE; VACCINATION; PREVALENCE; IMMUNITY;
D O I
10.3390/pathogens13090746
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Influenza in commercial swine populations leads to reduced gain in fattening pigs and reproductive issues in sows. This literature review aims to analyze the contributions of mathematical modeling in understanding influenza transmission and control among domestic swine. Twenty-two full-text research articles from seven databases were reviewed, categorized into swine-only (n = 13), swine-avian (n = 3), and swine-human models (n = 6). Strains of influenza models were limited to H1N1 (n = 7) and H3N2 (n = 1), with many studies generalizing the disease as influenza A. Half of the studies (n = 14) considered at least one control strategy, with vaccination being the primary investigated strategy. Vaccination was shown to reduce disease prevalence in single animal cohorts. With a continuous flow of new susceptible animals, such as in farrow-to-finish farms, it was shown that influenza became endemic despite vaccination strategies such as mass or batch-to-batch vaccination. Human vaccination was shown to be effective at mitigating human-to-human influenza transmission and to reduce spillover events from pigs. Current control strategies cannot stop influenza in livestock or prevent viral reassortment in swine, so mechanistic models are crucial for developing and testing new biosecurity measures to prevent future swine pandemics.
引用
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页数:32
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