Variola (smallpox) virus is classified as class A of potential biological weapons, due to its microbiological, genetic, antigenic and epidemiological characteristics. The potential danger is more real because vaccination against smallpox has stopped since disease eradication in 1979. That is why we want to share our unique, rich experience and acquired knowledge in the fight against this highly...

Motivated by the failure of current methods to control dengue fever, we formulate a mathematical model to assess the impact on the spread of a mosquito-borne viral disease of a strategy that releases adult male insects homozygous for a dominant, repressible, lethal genetic trait. A dynamic model for the female adult mosquito population, which incorporates the competition for female mating betwe...

BACKGROUND Helicobacter pylori (HP) infection is present in about 50% of the global population, and is associated with chronic gastritis, peptic disease and gastric malignancies. HP prevalence in Crohn's disease (CD) patients was shown to be low compared to the general population, and its influence on disease activity is yet to be determined. Our aims were to determine the prevalence of HP in a...

helicobacter pylori ( h. pylori ) infection is currently recognized as the major cause of chronic active gastritis, peptic ulcer disease and mucosa associated lymphoid tissue (malt) lymphoma and carcinoma of the stomach. eradication of the infection will prevent the recurrence of the majority of such diseases. different combined treatments have been tried in iran for eradication of h. pylori , ...

The case for global eradication of measles was first made in 1982. Since then, technical aspects of measles eradication have concluded that measles satisfied all criteria required for eradication. To date, only smallpox, among human diseases, has been eradicated, with polio, the next eradication candidate. In all previous eradication programmes, the pattern of slow implementation and missed dea...

A disease is controlled if, by means of a public policy, the circulation of an infectious agent is restricted below the level that would be sustained by individuals acting independently to control the disease. A disease is eliminated if it is controlled sufficiently to prevent an epidemic from occurring in a given geographical area. Control and elimination are achieved locally, but a disease ca...

conclusions considering the results of this study, although having h. pylori infection in ra patients was accompanied with higher number of inflamed and tender joints, but h. pylori eradication did not improve patients’ clinical symptoms and laboratory tests. it seems that the effect of h. pylori infection eradication over disease activity in ra patients is not remarkable, if it does exist at a...

Helicobacter pylori (H pylori) eradication heals chronic active type B gastritis and dramatically changes the natural history of duodenal ulcer disease. There are few data concerning the role of anti-H pylori treatment in gastric ulcer disease. A total of 83 patients presenting with H pylori positive active gastric ulcer disease were treated with omeprazole and antibiotics (amoxicillin, ciprofl...

Individuals change their behavior during an epidemic in response to whether they and/or those they interact with are healthy or sick. Healthy individuals may utilize protective measures to avoid contracting a disease. Sick individuals may utilize preemptive measures to avoid spreading a disease. Yet, in practice both protective and preemptive changes in behavior come with costs. This paper prop...