Pathogens and Outbreaks

Methyl Iodide Fumigation of Bacillus anthracis Spores

Fumigation techniques such as chlorine dioxide, vaporous hydrogen peroxide, and paraformaldehyde previously used to decontaminate items, rooms, and buildings following contamination with Bacillus anthracis spores are often incompatible with materials (e.g., porous surfaces, organics, and metals), causing damage or residue. Alternative fumigation with methyl bromide is subject to U.S. and international restrictions due to its ozone-depleting properties.

Restroom Infection Control: Chlorhexidine, the Final Frontier

Pioneering, award-winning work at the Queen Elizabeth Hospital, UK has demonstrated the remarkable residual antimicrobial activity of chlorhexidine on surfaces, thereby maintaining their continuous cleanliness over time.

In this school-setting trial, we demonstrate significant improvements in continuous cleanliness of restroom door handles. We discuss the possible benefits of applying this simple, inexpensive technique beyond clinical and office environments.

Molecular Epidemiology of Escherichia coli from Various Sources

Pathogen cycling through environment, food and clinical sources is a persistent and hidden danger to consumers. The present study uses various tools, both classical and molecular approaches to reveal the gravity of this problem. The attendees will be able to understand the issue in a conclusive manner with the help of first hand research results which will be presented in a very simple and interesting manner.

Presented at NEHA 2015 AEC

Is it in the Water? Investigation of a Waterborne Norovirus Outbreak

Norovirus outbreaks are becoming common and environmental health professionals are trained and experienced in environmental controls, such as proper cleaning procedures, to halt outbreaks. But what happens when the environmental controls are not preventing the spread? What other methods of transmission should you consider? Learn in this session how one county investigated and halted a Norovirus outbreak that resulted from contaminated well water.

Presented at NEHA 2015 AEC

Innovative Methods to Control, Investigate, and Monitor for Legionella: A Panel Discussion

How does a tourism-dependent community respond to an environmental pathogen found in its water? This session will introduce the basic ecology and pathogenicity of Legionella. A local engineer will share how a large hotel developed and implemented a waterborne pathogen control plan and the local health district will cover their approach to investigating single cases of Legionellosis. Detection and monitoring methods will also be addressed, including a rapid bacteria screening method which provides a means for risk assessment and outbreak mitigation without waiting for a bacterial culture.

Issues and Challenges: Investigation of Foodborne Illness in Jamaica / Toronto, Canada

This session reviews an outbreak investigation conducted in a mega hotel in Jamaica. Along the way, we discover gaps in the investigation process, describe challenges in disease surveillance, and determine the barriers to effective outbreak prevention and control.

See how the existing regulations stack up against changing trends in the tourism sector and possible remedies for the shortcomings. Use this case study to identify the emerging challenges and possible solutions in your outbreak investigation process before they happen.

Exposure Assessment and Unusual Source Identification: Usage in Legionella Outbreas & Disease

Between 8,000 and 18,000 hospitalizations in the US each year are due to Legionnaires' disease (LD) caused by exposure to Legionella pneumophila. Due to the ubiquity of the organism, it can be difficult to assess the specific source of Legionella exposure. After this session, you will be able to conduct an exposure assessment of a LD outbreak to show building owners, risk managers and environmental professionals that the source of Legionella is not always the one you first expect.

Presented at NEHA 2015 AEC