A 1998 Finnish outbreak was traced to contaminated iceberg lettuce grown on open fields with roe deer, which carry the Y. pseudotuberculosis pathogen. Researchers investigated and proposed prevention methods, including fenced fields and disinfection strategies.
Researchers developed a framework to account for mutations in models assessing emerging infectious disease emergence, highlighting the potential for long transmission chains and disease adaptation. The model suggests that even low reproductive numbers can lead to dramatic outbreaks as new strains evolve.
A new study reveals that marine epidemics spread approximately 100 times faster than comparable terrestrial epidemics. This faster rate of spread is attributed to the lack of barriers to pathogen dispersal in marine environments and better long-term survival of mobile infectious stages.
Tufts University has been awarded a $25-million NIH contract to collaborate with the University of Massachusetts on developing ways to diagnose and treat botulism poisoning, one of the most dangerous bioterrorism threats facing the US. The research will focus on identifying human pathogens that can cause disease in food or water.
Researchers are developing faster methods to detect pathogens in the environment, such as DNA-based field assays and real-time PCR systems. However, challenges persist, including identifying the viability of pathogens and distinguishing between natural and genetically modified organisms.
Researchers analyzed historical records of measles and whooping cough infections in European cities from 1883 to 1932, finding that the diseases exhibit negative correlation when one disease removes susceptible hosts. This 'ecological interference' can lead to alternating cycles of infection, affecting multiple strain dynamics.
The NIAID's new center will support research on three to 10 important pathogens over the next three years. It will develop new technologies for analyzing gene function, train researchers, and provide resources for the scientific community. The center aims to better understand individual genes and proteins to develop targeted treatments.
Bioterrorism poses a significant threat to US agriculture, with pathogens like soybean rust capable of devastating yields and contaminating the food supply. Experts are working to identify the most-threatening pathogens and develop strategies for prevention and response.
A team of chemists has created a completely synthetic vaccine by synthesizing the epitope of Neisseria meningiditis. The new vaccine uses a system that mimics conventional vaccines and may offer fewer side effects. Researchers are optimistic about the potential for this technology to improve vaccine development in the future.