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Zool Res ; 43(4): 514-522, 2022 Jul 18.
Article in English | MEDLINE | ID: covidwho-1856595


Bats are reservoirs of various viruses. The widely distributed cave nectar bat ( Eonycteris spelaea) is known to carry both filoviruses and coronaviruses. However, the potential transmission of theses bat viruses to humans is not fully understood. In this study, we tracked 16 E. spelaea bats in Mengla County, Yunnan Province, China, using miniaturized GPS devices to investigate their movements and potential contact with humans. Furthermore, to determine the prevalence of coronavirus and filovirus infections, we screened for the nucleic acids of the Menglà virus (MLAV) and two coronaviruses (GCCDC1-CoV and HKU9-CoV) in anal swab samples taken from bats and for antibodies against these viruses in human serum samples. None of the serum samples were found to contain antibodies against the bat viruses. The GPS tracking results showed that the bats did not fly during the daytime and rarely flew to residential areas. The foraging range of individual bats also varied, with a mean cumulative nightly flight distance of 25.50 km and flight speed of up to 57.4 km/h. Taken together, these results suggest that the risk of direct transmission of GCCDC1-CoV, HKU9-CoV, and MLAV from E. spelaea bats to humans is very low under natural conditions.

Chiroptera , Coronavirus Infections , Viruses , Animals , China/epidemiology , Coronavirus Infections/veterinary , Humans , Phylogeny , Plant Nectar
EuropePMC; 2020.
Preprint in English | EuropePMC | ID: ppcovidwho-324789


Background: Frontline epidemic prevention workers play a pivotal role against COVID-19. Their baseline of dietary and behavior habits and willingness to change these habits after experiencing the outbreak of COVID-19 remains unclear.Methods: A self-developed online questionnaire survey was carried out via the WeChat platform, and 22,459 participated, including 9402 frontline epidemic prevention workers.Findings: Before COVID-19, 23.9% of frontline epidemic prevention workers reported a high-salt diet, 46.9% reported a high frequency of fried food intake, 21.6% reported a low frequency of fresh vegetable intake, and 50.9% smoked cigarettes. After experiencing the outbreak of COVID-19, 34.6% had the willingness to reduce salt intake, and 43.7% want to reduce the frequency of pickled vegetable intake. 37.9% had the willingness to decrease or quit smoking, and 44.5% want to increase sleep duration. Significant differences in the baseline of dietary and behavioral habits and willingness to change their habits were observed between the frontline epidemic prevention worker and others(P<0.05). However, for the frontline epidemic prevention workers with poor dietary and behavioral habits, the frontline epidemic prevention experience might be a promoting factor to adopt worse dietary and behavioral habits, including the high-salt intake subgroup (OR 2.824, 95% CI 2.341-3.405) and shortest physical exercise time subgroup (OR 1.379, 95% CI 1.041-1.828).Interpretation: The dietary and behavior habits of the frontline epidemic prevention workers were worse than others before COVID-19. They had more willingness to adopt healthy dietary and behavior habits after experiencing the outbreak of COVID-19. Because the frontline epidemic prevention workers, who had poor dietary and behavior habits before COVID-19, still choose worse habits, dietary and behavior intervention policies should be drafted to protect their health, especially for those poor habits subgroups.Funding: This work was supported by The Science and Technology Project of Bao'an (NO.2020JD101).Declaration of Interests: The authors declare that they have no competing interests.Ethics Approval Statement: This study was approved by the ethics committee of Guangdong Medical University.

EuropePMC; 2020.
Preprint in English | EuropePMC | ID: ppcovidwho-324331


Background: To investigate impact of the 2019 novel coronavirus disease (COVID-19) pandemic on willingness to adopt healthy dietary habits in China. Methods: : A survey was carried out, and subjective perception of impact due to COVID-19 and willingness to change dietary habits were obtained. Results: : A total of 22,459 subjects were derived from China, with an average age of 27.9±7.8 years old. Of them, the mean score of willingness to adopt healthy dietary habits was 2.2 (ranges from -9 to 9). Multivariate regression analysis showed that the impact of the COVID-19 pandemic (epidemic concern, impact of psychology, impact of work or study) are associated with a higher score of willingness to adopt healthy dietary habits among female, the older, on-medical worker, and individuals married or with higher education level, normal BMI. Conclusions: : There was a positive improvement to a proper diet, so the changing features of diets should be considered in nutritional interventions for maintaining health, and prevention and control COVID-19 during the pandemic period.