The number of culled pigs and vaccinated pigs were estimated in an epidemiological model
Using an epidemiological model
and the WHO data, it is possible to reverse-engineer the model factors.
In the epidemiological model
the infectious agent is heroin, the host and reservoir are both man, and the vector is the drug-using peer.
Predictions of epidemiological models
were inaccurate and current control programs and technologies have shown their limitations to control the transmission of the disease.
Using country-level data on deaths and risk factors and epidemiological models
, Professor Majid Ezzati from Imperial College London, UK, and colleagues estimate the number of deaths that could be prevented between 2010 and 2025 by reducing the burden of each of the six risk factors to globally-agreed target levels -- tobacco use (30% reduction and a more ambitious 50% reduction), alcohol use (10% reduction), salt intake (30% reduction), high blood pressure (25% reduction), and halting the rise in the prevalence of obesity and diabetes.
Over the last 10 years, the number of ticks and tick-borne diseases has considerably increased, causing a sudden soar in those human diseases transmitted by forest ticks, such as rickettsiosis, anaplasmosis, and encephalitis; it thus appeared really important to develop epidemiological models
linking three key elements:
The transmission of tuberculosis in confined spaces: an analytical review of alternative epidemiological models