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2022 Vol. 4, No. 28

Preplanned Studies
Evaluation of Malaria Standard Microscopy and Rapid Diagnostic Tests for Screening — Southern Tanzania, 2018–2019
Kangming Lin, Mei Li, Duoquan Wang, Fei Luo, Shenning Lu, Mihayo G. Michael, Yeromin Mlacha, Prosper Chaki, Ning Xiao, Xiao-nong Zhou
2022, 4(28): 605-608. doi: 10.46234/ccdcw2022.132
Abstract(5448) HTML (319) PDF 206KB(21)
Abstract:
What is already known about this topic?

Microscopy is the gold standard for parasitological confirmation, but the accuracy of microscopic diagnosis is influenced by the skill of the technicians. An alternative is the immunologic-based malaria rapid diagnostic tests (mRDTs).

What is added by this report?

Our study evaluated standard microscopy in health system (SMHS) and mRDTs for focused screening and treatment of malaria (FSAT) in Southern Tanzania. We showed that mRDTs were more sensitive than local SMHS for diagnosing malaria infection.

What are the implications for public health practices?

Malaria rapid diagnostic tests can be useful as an alternative to SMHS for FSAT in the local context of Tanzania.

Plasmodium vivax in the Elimination Phase — China, 2013–2020
Li Zhang, Boyu Yi, Zhigui Xia, Fang Huang
2022, 4(28): 609-613. doi: 10.46234/ccdcw2022.133
Abstract(6040) HTML (326) PDF 369KB(20)
Abstract:
What is already known about this topic?

Plasmodium vivax (P. vivax) was the most widely distributed and major human malaria parasite in China, considered the last parasite to be eliminated.

What is added by this report?

The last domestic P. vivax case was reported in 2016, while hundreds of imported cases were reported annually from 2013–2020, predominantly from Southeast Asia.

What are the implications for public health practice?

In the post-elimination phase, adaptive and practical strategies focusing on imported P. vivax cases should be updated and adopted to prevent malaria resurgence.

Epidemiological Characteristics of Visceral Leishmaniasis — Shanxi Province, China, 1950–2019
Yingze Zhao, Ping Tie, Yongfei Bai, Liping Wang, Yuhua Zheng, Jiaojiao Zhang, Xiao Qi, Canjun Zheng, Xiao-nong Zhou
2022, 4(28): 614-617. doi: 10.46234/ccdcw2022.121
Abstract(6934) HTML (347) PDF 313KB(27)
Abstract:
What is already known about this topic?

Visceral leishmaniasis (VL) is the most serious form of leishmaniasis. In recent years, reported cases of VL have been gradually increasing in Shanxi Province, China.

What is added by this report?

The report describes the epidemiology of VL from 1950 to 2019 in Shanxi Province and the recent trend of VL reemergence.

What are the implications for public health practice?

Measures to prevent and control VL, such as health education, improving clinical diagnostics, strengthening epidemiological investigation capacity for VL cases, monitoring surveillance, and use of other evidence-based preventive measures, should be undertaken in Shanxi Province.

Assessment of the Health-Related Quality of Life in Neurocysticercosis Patients in Hot Spot Areas — China, 2017–2018
Yingjun Qian, Xinzhong Zang, Huanzhang Li, Zhaoyu Guo, Changhai Zhou, Menbao Qian, Yingdan Chen, Hongkun Liu, Yuhua Liu, Shizhu Li
2022, 4(28): 618-621. doi: 10.46234/ccdcw2022.134
Abstract(5492) HTML (252) PDF 301KB(18)
Abstract:
What is already known about this topic?

Neurocysticercosis is the most severe form of infection caused by ingesting cysticerci, the larval cysts of the pork tapeworm, Taenia solium. Approximately 50 million people worldwide have neurocysticercosis, which is the leading cause of acquired epilepsy in many endemic countries.

What is added by this report?

The health of neurocysticercosis patients can be seriously impaired, including through loss of mobility, inability to do self-care, impairment of usual activities, pain/discomfort, anxiety/depression, and impaired cognition. Cognitive impairment is the major consequence of neurocysticercosis and significant contributor to decreased health-related quality of life. Our study made the first estimate of disability weight from neurocysticercosis as a key parameter for disease burden assessment in China.

What are the implications for public health practice?

To prevent severe health outcomes from neurocysticercosis in China, it is necessary to improve public awareness of neurocysticercosis and relevant health behaviors.

Surveillance and Response to Imported Malaria During the COVID-19 Epidemic — Anhui Province, China, 2019–2021
Tao Zhang, Jingjing Jiang, Xiaofeng Lyu, Xian Xu, Shuqi Wang, Zijian Liu, Jianhai Yin, Weidong Li
2022, 4(28): 622-625. doi: 10.46234/ccdcw2022.135
Abstract(5663) HTML (305) PDF 414KB(27)
Abstract:
What is already known about this topic?

China was certified malaria-free on June 30, 2021. However, imported malaria continuously threatens the effort to prevent re-establishment of malaria in China.

What is added by this report?

Measures such as international travel restrictions, entry quarantine, and screening in fever clinics during the coronavirus disease 2019 (COVID-19) period were associated with a significant decrease of imported malaria cases in Anhui Province, a higher proportion of non-Plasmodium falciparum (non-P. falciparum) malaria reported infections, and a higher proportion of cases requiring medical attention at their initial visit.

What are the implications for public health practices?

It is necessary to be vigilant about imported malaria during the COVID-19 epidemic, especially for non-P. falciparum infections which are more difficult to detect, and to promote research, development, and introduction of more sensitive and specific point-of-care detection methods for non-P. falciparum species.