Natural disasters including hurricanes, floods, earthquakes, tornadoes, and fires often involve substantial physical and mental impacts on affected populations and thus are public health priorities. Limited research shows that vulnerable populations such as the low-income, socially isolated migrant and seasonal farmworkers (MSFW) are particularly susceptible to the effects of natural disasters. This research project assessed the awareness, perceived risk, and practices regarding disaster preparedness and response resources and identified barriers to utilization of community and government services during or after a natural disaster among Latino MSFWs’ and their families. Qualitative (N = 21) focus groups (3) and quantitative (N = 57) survey methodology was implemented with Latino MSFWs temporarily residing in rural eastern North Carolina to assess perceived and actual risk for natural disasters. Hurricanes were a top concern among the sample population, many participants shared they lacked proper resources for an emergency (no emergency kit in the house, no evacuation plan, no home internet, a lack of knowledge of what should be included in an emergency kit, etc.). Transportation and language were found to be additional barriers. Emergency broadcasts in Spanish and text message alerts were identified by the population to be helpful for disaster alerts. FEMA, American Red Cross, local schools and the migrant clinic were trusted places for assistance and information. In summary, tailored materials, emergency alerts, text messages, and news coverage concerning disaster threats should be provided in the population’s native language and when feasible delivered in a culturally appropriate mechanism such as “charlas” (talks) and brochures.
Pathogen-free rainbow trout (Oncorhynchus mykiss) aged 735 degree days were experimentally exposed to a low dose of infectious Myxobolus cerebralis (20 triactinomyxons fish(-1)). Three time periods were chosen for sampling that included 10 days (d), 67 d, and 5 months (mo) post exposure. Five diagnostic assays were used: (1) conventional single-round polymerase chain reaction (PCR), (2) nested PCR, (3) real-time TaqMan PCR, (4) pepsin-trypsin digest, and (5) histopathology. M. cerebralis was detected among individual rainbow trout by all of the PCR diagnostic tests employed at each of the three sampling time points. This result demonstrates that any of these three diagnostic approaches are capable of detecting the parasite from infected fish tissues under the conditions tested. Real-time PCR provided good biological evidence that parasite replication increases temporally as shown by quantification values that were significantly different (P<0.0001) at 10 d as compared to 67 d and 5 mo postexposure. Although sampling at 10 d by real-time PCR may be too early to accurately predict quantities of the parasite that will be present at 5 mo, it does forecast the proportions of fish that are likely to be infected at 67 d and 5 mo postparasite exposure. Real-time PCR could potentially be used as a quantitative diagnostic PCR tool to predict parasite load and outcome of M. cerebralis infection.
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