Infection Control Today - Herd Immunity

Haiti Can Quell Cholera Without Vaccinating Most People, Researchers Say

Cholera could be contained in Haiti by vaccinating less than half the population, University of Florida researchers suggest in a paper published in the journal Scientific Reports. The work places UF’s Emerging Pathogens Institute in the pro-vaccination camp in an ongoing ...More

January 10, 2013

Posted in News

Review Indicates Altruism's Influence on Parental Decision to Vaccinate Children is Unclear

As outbreaks of preventable diseases such as whooping cough and measles increase in the United States, researchers from the Regenstrief Institute and Indiana University School of Medicine are investigating whether altruism, known to influence adults' decisions to immunize ...More

September 11, 2012

Posted in News

Study Explores Medical Exemptions from School Vaccination Requirements Across States

In states where medical exemptions from vaccination requirements for kindergarten students are easier to get, exemption rates are higher, potentially compromising herd immunity and posing a threat to children and others who truly should not be immunized because of ...More

August 30, 2012

Posted in News

HPV Vaccine Reduces Infection, Even in Unvaccinated

The HPV vaccine not only has resulted in a decrease in human papillomavirus infection in immunized teens but also in teens who were not immunized. The study is believed to be the first to show a substantial decrease in HPV infection in a community setting as well as herd ...More

July 9, 2012

Posted in News

Planning for the Next Influenza Season

The level of herd immunity before and after the first 2009 pandemic season is not precisely known, and predicting the shape of the next pandemic H1N1 season is a difficult challenge. Carrat, et al. (2010) conducted a modeling study based on data on medical visits for ...More

October 22, 2010

Posted in News

Mumps Vaccine Coverage Should Be Improved, Study Finds

Although immunity to mumps is high in the United States, mumps vaccine coverage must be maintained and improved to prevent future outbreaks, according to a new study. ...More

August 24, 2010

Posted in News

Herd Immunity to H1N1: The Norway Experience

By autumn 2009, almost half of the population of Norway had been vaccinated against the pandemic influenza A (H1N1) virus. Many had also been infected by the virus during the summer and autumn outbreaks. The majority of those who were vaccinated or were infected are ...More

August 24, 2010

Posted in News

Rise in Pertussis Cases Makes It 'Worth a Shot'

By Jacquelyn Preston and Karen Krakower Kaplan If you think you shouldn't be worried about your child's—or your—lingering, nagging cough, think again. Pertussis has reemerged on the scene. In what some public health officials are calling the worst outbreak in 50 years, ...More

August 18, 2010

Posted in News

Small Increases in Vaccine Cost Can Cause Large Gaps in Protection

Vaccine scares may do more harm than previously believed to a population's "herd immunity." ...More

July 29, 2010

Posted in News

Study Finds Rotavirus Vaccine Greatly Reduces Hospitalizations for Acute Gastroenteritis in Children

Vaccinating infants against rotavirus, a leading cause of severe diarrhea and dehydration among babies and young children, was associated with a dramatic decline in U.S. hospitalization rates for acute gastroenteritis. The findings appear in a study, now available online, ...More

May 12, 2010

Posted in News

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