Rafael Obregon

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Most theories and models used to develop human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) communication are based on social psychology that emphasizes individualism. Researchers including communication and health scholars are now questioning the presumed global relevance of these models and thus the need to develop innovative(More)
Since 1988, the world has come very close to eradicating polio through the Global Polio Eradication Initiative, in which communication interventions have played a consistently central role. Mass media and information dissemination approaches used in immunization efforts worldwide have contributed to this success. However, reaching the hardest-to-reach, the(More)
It is fitting that this special edition of the Journal of Health Communication is dedicated to the evidence for the effectiveness of behavior and social change in child survival and development. The field of health communication and the use of evidence, in fact, have strong roots in the early applications of mass media and social marketing to programs for(More)
The Polio Eradication Initiative (PEI) has been one of the most ambitious global health efforts in recent times. Social mobilization (SM) has been a strategic component of the PEI. Yet, a close-up analysis of SM dynamics seems to be lacking in the health communication literature. We examine critical aspects of the PEI experience in an attempt to move from(More)
Given the high morbidity and mortality among children in low- and middle-income countries as a result of preventable causes, the U.S. government and the United Nations Children's Fund convened an Evidence Summit on Enhancing Child Survival and Development in Lower- and Middle-Income Countries by Achieving Population-Level Behavior Change on June 3-4, 2013,(More)
Bochdalek's hernia is the most common congenital diaphragmatic hernia in newborns, but it is an uncommon clinical feature in adults. In most cases, there are no symptoms or only minor gastrointestinal problems. Rarely, it may manifest as an acute abdomen due to viscus strangulation, requiring emergency surgery. We report the case of a 52-year-old man with(More)
In response to the overwhelming burden of new cases of human immunodeficiency virus (HIV) in Africa, Asia, Latin America, and the Caribbean, the Joint United Nations Programme on HIV/AIDS (UNAIDS), in 1997, initiated a project to examine the application of existing communication theories/models to HIV/acquired immune deficiency virus (AIDS) prevention and(More)
Following the World Health Organization (WHO) declaration of a Public Health Emergency of International Concern regarding the Ebola outbreak in West Africa in July 2014, UNICEF was asked to co-lead, in coordination with WHO and the ministries of health of affected countries, the communication and social mobilization component-which UNICEF refers to as(More)
We present observations and experimental evidence for a new type of parasitoid-host interaction. In the Lampides boeticus (Lepidoptera) - Cotesia specularis (Hymenoptera) system, larvae of the former species readily kill and consume the parasitoid cocoons they find. Potential effects at both the individual and population levels are briefly outlined.