Occupational Carbon Monoxide Poisoning Associated with Diesel Motor Operation in an Air-raid Shelter in June 2015, Jinan City, China-An Epidemiological Investigation / 生物医学与环境科学（英文）

Occupational carbon monoxide (CO) poisoning related to diesel motor fumes in an air-raid shelter (ARS) was first identified in Jinan City, China, in June 2015. A total of 17 cases were identified, including 14 possible cases of firemen and 3 confirmed cases of water channel clean-up workers. The overall attack rate (AR) of firemen was 42% (14/33). The firemen had a significantly higher AR with a longer exposure and more protracted time of rescue in the ARS (P < 0.05). All the cases stated that they did not realize the potentially high level of exposure to CO in the ARS. CO poisoning posed a risk to both patients and service providers. Occupational safety and health education should be promoted and enforced in all workplaces where CO sources exist.

A cross-sectional survey on the prevalence of Brucellosis among workers in Jiangsu province, 2012 / 中华流行病学杂志

<p><b>OBJECTIVE</b>To study the status of infection and risk factors on Brucellosis among workers in Jiangsu province so as to provide related preventive and control measures.</p><p><b>METHODS</b>A cross-sectional survey was conducted on 238 workers at three butcheries, one trading market and one stockyard. Related risk factors on the different exposures to the disease were also analyzed.</p><p><b>RESULTS</b>50 workers were identified to have had the infection, with a infection rate as 21% (50/238). No significant differences in gender, age, working length and occupations were found. Jobs as slaughtering (RR = 1.80, 95%CI:1.1-3.1), particular on bleeding (RR = 1.90, 95%CI:1.1-3.3) were risk factors. Habit as hand-washing before eating was a protective factor (RR = 0.25, 95% CI: 0.14-0.44).</p><p><b>CONCLUSION</b>Workers from butcheries, trading markets and stockyards were seriously infected with Brucellosis in Jiangsu province and related. Control measures and education should be implemented to the workers in that trade.</p>

A viral meningitis outbreak associated with Echo30 in drinking water / 中华流行病学杂志

Objective To study the source of infection,the scope of epidemic and control measures in an outbreak involving students having symptoms as fever,dizziness,headache,vomiting and nausea.Methods The suspected-case was defined as fever (armpit temperature ≥37 ℃) and with one or more of the following symptoms:dizziness,headache,vomiting and nausea,among students and teachers at school from Mar 1,2012.Confirmed-case was among suspected case accompanied by both throat and rectal swabs enterovirus positive by RT-PCR.All the cases were collected through checking the medical records from 4 hospitals as well as through the absence records of students and teachers,from Mar 1,2012.We conducted a case-control study with ratio of 1 ∶ 2 and data on the exposures to water among students and teachers was collected prior to the illness.27 cases' throat and rectal swabs were collected and analyzed by RT-PCR and PCR sequence methods.2 warm-water samples were collected for testing the counts on total bacteria and E.coli.Results 103 students' cases were identified in school L,with the attack rate as 4.6％ (103/2255).Students from Grade three had the high attack rate as 18.1％ (72/397) and 77.7％ (80/103) of the cases located in the building with ' multiple-functions'.Epidemic curve of the outbreak showed a pattern with continuous common source of infection.It seemed that the exposure to warm-water appeared to be the major risk factor (OR =18.3,95％CI:2.0-169.5) together with the intake of un-boiled water (OR =15.5,95 ％CI:1.7-141.8).Specimens from 27 students (81.5％,22/27) were identified enterovirus positive by RT-PCR,and 7 of the 9 students were confirmed carrying Echo 30.Bacteria and coli were negative from the 2 warm-water samples.Conclusion This viral meningitis-outbreak was caused by Echo 30,with drinking water as the major risk factor.