James G. Wood

Learn More
We investigated the capacity of internal border control to limit influenza spread in an emergent pandemic in the context of Australia, a country with a low-population density and geopolitical boundaries that may facilitate restrictions. Mathematical models were used to study the time delay between epidemics in 2 population centers when travel restrictions(More)
Many countries are stockpiling face masks for use as a nonpharmaceutical intervention to control virus transmission during an influenza pandemic. We conducted a prospective cluster-randomized trial comparing surgical masks, non-fit-tested P2 masks, and no masks in prevention of influenza-like illness (ILI) in households. Mask use adherence was(More)
It is not clear whether improvements found with group technology are due to the structure embedded in the technology or the added benefit of the technology in managing information complexity. Process complexity is proposed as the explanatory factor in previous conflicting results. Task complexity is clarified and a Process Complexity Model is proposed and(More)
BACKGROUND Wide-scale use of antiviral agents in the event of an influenza pandemic is likely to promote the emergence of drug resistance, with potentially deleterious effects for outbreak control. We explored factors promoting resistance within a dynamic infection model, and considered ways in which one or two drugs might be distributed to delay the spread(More)
We used a hybrid transmission and economic model to evaluate the relative merits of stockpiling antiviral drugs and vaccine for pandemic influenza mitigation. In the absence of any intervention, our base-case assumptions generated a population clinical attack rate of 31.1%. For at least some parameter values, population prepandemic vaccination strategies(More)
The WHO recommended intervention of Directly Observed Treatment, Short-course (DOTS) appears to have been less successful than expected in reducing the burden of TB in some high prevalence settings. One strategy for enhancing DOTS is incorporating active case-finding through screening contacts of TB patients as widely used in low-prevalence settings.(More)
Limited production capacity and delays inherent in vaccine development are major hurdles to the widespread use of vaccines to mitigate the effects of a new influenza pandemic. Antigen-sparing vaccines have the most potential to increase population coverage but may be less efficacious. The authors explored this trade-off by applying simple models of(More)
Percentage of those infected who are symptomatic 50% Beta α=11, β=11 (7) Latent period 1 day Gamma Shape: 25, Scale: 0.04 (8) Infectious period 2 days Gamma Shape: 40, Scale: 0.05 (8) Relative infectiousness of asymptomatic individuals 66.7% Beta α=6, β=3 (9, 10) Percentage of individuals clinically infected who seek primary care Beta (11) Strategy 1/3 50%(More)
The integral of the Wigner function of a quantum mechanical system over a region or its boundary in the classical phase plane, is called a quasiprobability integral. Unlike a true probability integral, its value may lie outside the interval [0, 1]. It is characterized by a corresponding selfadjoint operator, to be called a region or contour operator as(More)
A preliminary design for a linear motion free-piston Stirling engine / blower coupled to a rotary turbine / generator is described. The design combines several features of prototype free-piston machines that are nearing commercial production. This approach promises to extend the commercially practical range of free-piston Stirling engine / electric(More)