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Chinese Journal of Parasitology and Parasitic Diseases ; 40(2):261-265, 2022.
Article in Chinese | EMBASE | ID: covidwho-2324526


The epidemiological data were collected from travellers who returned from Guinea on the 23rd of September, 2020 and were diagnosed with malaria at a C OVID -19 quarantine site in Qingdao, Shandong Province. The epidemiological characteristics, diagnosis and treatment of the cases and the epidemiology investigation and the rapid test screening results for other travellers on from the same flight and the interventions in reaction to the imported malaria cases were analyzed. The results showed that 4 out of 231 Guinean returned travellers had developed malaria symptoms, including chills and fever, during the isolation period. Rapid diagnostic test (RDT) indicated Plasmodium falciparum infection. Considering the patients ' travel history, clinical manifestations, and laboratory RDT test results, a confirmed diagnosis of imported P. falciparum malaria was made. The four malaria cases, who are male workers aged 29 to 55, were transferred to Jiaozhou People ' s Hospital for treatment. All four patients were administrated of artemether tablets upon diagnosis. One of the cases experienced severe malaria complications and were administrated with 12 doses (60 mg/dose) of artesunate intravenously for five days. The other three patients were treated with dihydroartemisinin and piperaquine phosphate tablets for one course of 8 tablets in 2 days (40 mg dihydroartemisinin and 320 mg piperaquine phosphate), respectively. Among the 231 returned travellers, 111 (48.1 %) had a history of malaria overseas. There were 23 positive cases detected by RDT, including the four symptomatic cases. The other 19 cases were asymptomatic. One of the asymptomatic cases became symptomatic three months later and was diagnosed as an imported P. malariae infection. Laboratory blood smear microscopic tests at the Jiaozhou City and Qingdao Municipal Center For Disease Control and Prevention showed negative results for the four malaria cases and the 19 RDT positive case. The samples from the four malaria cases were rechecked by the provincial reference laboratory of Shandong Institute of parasitic Disease. The results were negative for malaria infection by microscopic examination but positive for P. falciparum infection by nucleic acid test. It is suggested that during the routine control of COVID-19, the awareness of COVID-19 and malaria should be established among the returned travellers from high malaria-endemic areas. The health education "gate" should be moved forward to improve the treatment compliance for malaria cases and reduce the relapse or recrudescence caused by sub-optimal treatment.Copyright © 2022, Chin J Parasitol Parasit Dis. All rights reserved.

American Journal of Gastroenterology ; 117(10):S536-S537, 2022.
Article in English | Web of Science | ID: covidwho-2311361
American Journal of Gastroenterology ; 117(10):S667-S668, 2022.
Article in English | Web of Science | ID: covidwho-2310685
Society, Integration, Education 2021, Vol Vi: Implications for Demographic Change: Society, Culture, Education, Researches in Economics and Management for Sustainable Education ; : 285-292, 2021.
Article in English | Web of Science | ID: covidwho-2006614
American Journal of Gastroenterology ; 116(SUPPL):S513, 2021.
Article in English | EMBASE | ID: covidwho-1534718
New Microbes New Infect ; 39: 100814, 2021 Jan.
Article in English | MEDLINE | ID: covidwho-988948


Coronavirus disease 2019 (COVID-19) is still a global epidemic. Several studies of individuals with severe COVID-19 regard convalescent plasma (CP) transfusion as an effective therapy. However, no significant improvements are found in randomized clinical trials of CP treatment. Until now, data for individuals with mild COVID-19 transfused CP were lacking. This study recruited eight individuals with mild COVID-19 who received at least one dose of CP transfusion. After CP therapy, the clinical symptoms of all individuals improved. Lymphocyte counts tended to increase, and lactate dehydrogenase, creatine kinase and aspartate aminotransferase tended to decrease. However, C-reactive protein increased transiently in three individuals. The median time for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleic acid test to become negative was 2.5 days after CP transfusion. The study shows the potential benefits of CP. Meanwhile, CP probably enhances the inflammatory response to SARS-CoV-2 temporarily in people with insufficient antiviral immunity. However, the effects of CP are not permanent.