Estimation of the herd-level basic reproduction number for African swine fever in Vietnam, 2019-Reference-Cited by-同舟云学术

Estimation of the herd-level basic reproduction number for African swine fever in Vietnam, 2019

Published:2022-12-15 Issue: Volume: Page:2850-2855
ISSN:2231-0916
Container-title:Veterinary World
language:en
Short-container-title:Vet World

Author:

Mai Thi Ngan¹^ORCID,Nguyen Thanh Trung²^ORCID,Vu Viet Anh³^ORCID,Vu Thi Ngoc¹^ORCID,Huynh Thi My Le¹^ORCID

Affiliation:

1. Department of Veterinary Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam.

2. Department of Pharmacology, Toxicology, Internal Medicine and Diagnostics, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam.

3. Central Laboratory, Faculty of Animal Science, Vietnam National University of Agriculture, Hanoi, Vietnam.

Abstract

Background and Aim: African swine fever (ASF) is a notifiable viral disease of pigs and wild boars that causes severe economic losses to the swine industry. The pig industry in Vietnam was recently attacked by the ASF virus (ASFV) for the first time in history. However, we lack information regarding the transmissibility of ASF within indoor production systems communities, such as those in Vietnam. Therefore, we aimed to estimate the basic reproduction number (R0) for ASF during the early stages of transmission between farms in indoor production system communities from local and national data in Vietnam. Materials and Methods: The linear regression model approach for the susceptible infectious method was used in this study to estimate the transmission rate and, consequently, the R0 value. Results: The R0 values between-farm of ASF ranged from 1.41 to 10.8 in different scenarios of infectious period duration, from 15 to 30 days at the national and local levels. Conclusion: These results help to understand the scale and speed of ASF infection in Vietnam and to provide a scientific basis to implement control measures to restrict the spread of ASFV in other locations.

Funder

University of Sydney

Publisher

Veterinary World

Subject

General Veterinary

Link

http://www.veterinaryworld.org/Vol.15/December-2022/13.pdf

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