Quantitative analyses and modelling to support achievement of the 2020 goals for nine neglected tropical diseases

Quantitative analysis and mathematical models are useful tools in informing strategies to control or eliminate disease. Currently, there is an urgent need to develop these tools to inform policy to achieve the 2020 goals for neglected tropical diseases (NTDs). In this paper we give an overview of a collection of novel model-based analyses which aim to address key questions on the dynamics of transmission and control of nine NTDs: Chagas disease, visceral leishmaniasis, human African trypanosomiasis, leprosy, soil-transmitted helminths, schistosomiasis, lymphatic filariasis, onchocerciasis and trachoma. Several common themes resonate throughout these analyses, including: the importance of epidemiological setting on the success of interventions; targeting groups who are at highest risk of infection or re-infection; and reaching populations who are not accessing interventions and may act as a reservoir for infection,. The results also highlight the challenge of maintaining elimination 'as a public health problem' when true elimination is not reached. The models elucidate the factors that may be contributing most to persistence of disease and discuss the requirements for eventually achieving true elimination, if that is possible. Overall this collection presents new analyses to inform current control initiatives. These papers form a base from which further development of the models and more rigorous validation against a variety of datasets can help to give more detailed advice. At the moment, the models' predictions are being considered as the world prepares for a final push towards control or elimination of neglected tropical diseases by 2020

Utilizing Behavioral Interventions to Improve Supervision Outcomes in Community-Based Corrections

The number of offenders supervised in the community has grown significantly over the past few decades, whereas successful completions of probation and parole terms have been declining during the same time period. The current study examines the impact of rewards and sanctions on offenders in an Intensive Supervision Program (ISP). Data were collected on a random sample of 283 offenders who participated in an ISP between 2000 and 2003. Agency records, including supervision notes, violation reports, and other offender-related correspondence, were used to track offenders ’ sanction and reward histories during their participation in the program. Controlling for a number of variables, the study found that the use of both sanctions and rewards led to higher success rates. Administering rewards in proportionally higher numbers than sanctions produced the best results, especially when a ratio of four or more rewards for every sanction was achieved. Correctional administrators are encouraged to identify ideological obstacles that may impede the application of behavioral techniques and to carefully train and guide line staff in the use of sanctions and rewards