ebola hemorrhagic fever (ehf) was first reported in 1976 with two concurrent outbreaks of acute viral hemorrhagic fever centered in yambuku (near the ebola river), democratic republic of congo, and also in nzara, sudan. the current outbreak of the ebola virus was started by reporting the first case in march 2014 in the forest regions of southeastern guinea. due to raising infection rates of ove...

background: human resources, especially medical staff is one of the main components of health care system and organizational development. the purpose of this study was to estimate the required nurses for hospitals affiliated to tehran university of medical sciences based on the models of the world health organization and levine. methods: this study was cross-sectional and descriptive. seven hos...

As COVID-19 was declared as a pandemic by the World Health Organization (WHO) in March 2020, it is an emerging need to discuss different aspects of this pandemic. In any pandemic, valid and rapid laboratory diagnostic tests are critically important for early diagnosis, which will increase the rate of successful treatment and more importantly prevent the spread of the disease.  

  In 1974, the World Health Organization (WHO) established the Expanded Program on Immunization (EPI) to ensure that all children have access to routinely recommended vaccines. Since then, global coverage with the four core vaccines (Bacille calmette guérin vaccine [for protection against tuberculosis], Diphtheria-tetanus-pertussis vaccine [DTP], Polio vaccine, and Measles vaccine) has increase...

The World Health Organization (WHO) is a specialized agency of the United Nations which was set up in Geneva in 1948. The constitution of WHO establishes it as 'the directing and coordinating authority on international health work'. It is responsible for helping all peoples to attain 'the highest possible levels of health'. The central structure of WHO includes a policy-making body termed the W...