Design of a detection survey for Ostreid herpesvirus-1 using hydrodynamic dispersion models to determine epidemiological units.
Using Ostreid herpesvirus-1 (OsHV-1) as a case study, this paper considers a survey design methodology for an aquatic animal pathogen that incorporates the concept of biologically independent epidemiological units. Hydrodynamically-modelled epidemiological units are used to divide marine areas into sensible sampling units for detection surveys of waterborne diseases. In the aquatic environment it is difficult to manage disease at the animal level, hence management practices are often aimed at a group of animals sharing a similar risk. Using epidemiological units is a way to define these groups, based on a similar level of probability of exposure based on the modelled potential spread of a viral particle via coastal currents, that can help inform management decisions.
Ministry for Primary Industries, PO Box 2526, Wellington 6140, New Zealand. Electronic address: Anjali.pande@mpi.govt.nz.
Anjali
A
Pande
Ministry for Primary Industries, PO Box 2526, Wellington 6140, New Zealand.
Hernando
H
Acosta
Ministry for Primary Industries, PO Box 2526, Wellington 6140, New Zealand.
Naya Alexis
NA
Brangenberg
Ministry for Primary Industries, PO Box 2526, Wellington 6140, New Zealand.
Suzanne Elizabeth
SE
Keeling
D000818:Animals; D017756:Aquaculture / Q000379:methods*; D049896:Crassostrea / Q000821:virology*; D004267:DNA Viruses / Q000302:isolation & purification*; D057446:Hydrodynamics; D008962:Models, Theoretical; D009520:New Zealand
Aquatic epidemiology; Hydrodynamic modelling; OsHV-1; Oyster herpesvirus-1; Surveillance; epidemiological units