Echinococcosis prevalence and knowledge awareness in population in Jiuzhi County of Qinghai Province during 2017—2018

doi:10.12140/j.issn.1000-7423.2021.05.017

Abstract

Abstract:

Objective To investigate the prevalence and knowledge awareness of echinococcosis in Jiuzhi County, Qinghai Province during 2017—2018. Methods Residents above 2 years of age in seven townships (town) in Jiuzhi County were selected with a cluster random sampling method during 2017—2018 and subjected to B-ultrasound examination to determine the prevalence of echinococcosis in the residents. A field questionnaire regarding knowledge of echinococcosis prevention and control was performed randomly among groups with different occupations. Results A total of 25 238 people in Jiuzhi County received B-ultrasound examination, 798 of them were diagnosed with echinococcosis, showing a prevalence rate of 3.2% (798/25 238). Of the diagnosed cases, 245 were cystic echinococcosis (30.7%), 549 with alveolar echinococcosis (68.8%), and 4 mixed type (0.5%). The prevalence was higher in females (4.0%, 498/12 327) than males (2.3%, 300/12 911) (χ² = 60.668, P < 0.01). The prevalence of echinococcosis increased with age, and was highest in the age group 50-60 (8.0%, 141/1 756) (χ² = 439.082, P < 0.01). The prevalence was highest in the illiterate group (20.7%, 693/3 356) (χ² = 3 871.087, P < 0.01) among all groups of educational levels. The prevalence in the nomadic population (4.0%, 743/18 561) was higher than that in the settled population (0.8%, 55/6 677) (χ² = 162.104, P < 0.01). The prevalence of echinococcosis was highest in Waeryi township (10.9%, 349/3 218) (χ² = 881.983, P < 0.01). In 2017 and 2018, 431 and 449 questionnaires were completed in the residents with different occupations, and the awareness rates of echinococcosis were 84.5% (364/431) and 94.5% (426/449), respectively. Conclusion High prevalence of echinococcosis was found in Jiuzhi County. The rate of awareness on echinococcosis control in 2018 was higher than that in 2017.

Key words: Echinococcosis, Jiuzhi County, Human, Investigation

CLC Number:

R532.32

LIU Jia, LEI Wen, MA Xiao, ZHANG Xue-fei, FAN Hai-ning, WANG Wei, ZHANG Qing, MA Jun-ying, CAI Hui-xia, ZHAN Pei-zhen, ZHANG Jing-xiao, LIU Yu-fang, LIU Na, WANG Yong-shun, ZHAO Cun-zhe, ZHANG Xiong-ying, SHI Ke-mei, YIN Xiu-qin, SHANG Shun-xin. Echinococcosis prevalence and knowledge awareness in population in Jiuzhi County of Qinghai Province during 2017—2018[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2021, 39(5): 681-686.

Figures/Tables 2

Table 1

Table 2

References 14

[1]	Cadavid Restrepo AM, Yang YR, McManus DP, et al. The landscape epidemiology of echinococcoses[J]. Infect Dis Poverty, 2016, 5:13.
[2]	Budke CM, Deplazes P, Torgerson PR. Global socioeconomic impact of cystic echinococcosis[J]. Emerg Infect Dis, 2006, 12(2):296-303.
[3]	McManus DP, Gray DJ, Zhang W, et al. Diagnosis, treatment, and management of echinococcosis[J]. BMJ, 2012, 344:e3866.
[4]	Zhang MY, Wu WP, Guan YY, et al. Analysis on disease burden of hydatid disease in China[J]. Chin J Parasitol Parasit Dis, 2018, 36(1):15-19, 25. (in Chinese)
[4]	( 张梦媛, 伍卫平, 官亚宜, 等. 我国棘球蚴病疾病负担分析[J]. 中国寄生虫学与寄生虫病杂志, 2018, 36(1):15-19, 25.)
[5]	Wang GQ. Epidemiological survey on echinococcosis in China[M]. Shanghai: Shanghai Scientific & Technical Publishers, 2016: 14-15. (in Chinese)
[5]	( 王国强. 全国包虫病流行情况调查报告[M]. 上海: 上海科学技术出版社, 2016: 14-15.)
[6]	Feng X, Qi X, Yang L, et al. Human cystic and alveolar echinococcosis in the Tibet Autonomous Region (TAR), China[J]. J Helminthol, 2015, 89(6):671-679.
[7]	Ma X, Wang H, Zhang JX, et al. Epidemiological investigation on hydatid disease/echinococcosis in Guoluo Tibetan Autonomous Prefecture in Qinghai Province[J]. Chin J Parasitol Parasit Dis, 2017, 35(4):366-370. (in Chinese)
[7]	( 马霄, 王虎, 张静宵, 等. 青海省果洛藏族自治州棘球蚴病和棘球绦虫病流行情况调查[J]. 中国寄生虫学与寄生虫病杂志, 2017, 35(4):366-370.)
[8]	Wang D, Feng Y, Li F, et al. An epidemiological survey on hydatid disease in Tibetan autonomous areas of Gansu Province[J]. Chin J Parasitol Parasit Dis, 2017, 35(2):140-144. (in Chinese)
[8]	( 王东, 冯宇, 李凡, 等. 甘肃省藏区人群棘球蚴病流行现状调查及分析[J]. 中国寄生虫学与寄生虫病杂志, 2017, 35(2):140-144.)
[9]	Umhang G, Lahoreau J, Hormaz V, et al. Surveillance and management of Echinococcus multilocularis in a wildlife park[J]. Parasitol Int, 2016, 65(3):245-250.
[10]	Craig P, Mastin A, van Kesteren F, et al. Echinococcus granulosus: epidemiology and state-of-the-art of diagnostics in animals[J]. Vet Parasitol, 2015, 213(3/4):132-148.
[11]	Mastin A, van Kesteren F, Torgerson PR, et al. Risk factors for Echinococcus coproantigen positivity in dogs from the Alay valley, Kyrgyzstan[J]. J Helminthol, 2015, 89(6):655-663.
[12]	Luo A, Wang H, Li JQ, et al. Epidemic factors and control of hepatic echinococcosis in Qinghai Province[J]. Acta Med Univ Med Tongji, 2014, 34(1):142-145.
[13]	Wang Q, Yu WJ, Zhong B, et al. Seasonal pattern of Echinococcus re-infection in owned dogs in Tibetan communities of Sichuan, China and its implications for control[J]. Infect Dis Poverty, 2016, 5:1-8.
[14]	Yu Q, Zhou XN. Discussion on strategies of health literacy promotion for echinococcosis control in China[J]. Chin J Schisto Control, 2019, 31(1):94-97. (in Chinese)
[14]	( 余晴, 周晓农. 我国棘球蚴病防治工我国棘球蚴病防治工作中健康素养提升策略之探讨[J]. 中国血吸虫病防治杂志, 2019, 31(1):94-97.)

特征 Characteristic	B超检查 B-ultrasound examination			χ²	P
特征 Characteristic	检查人数 No. exam’d	患病人数 No. positive	检出率/% Positive rate/%	χ²	P
性别Gender
男性Male	12 911	300	2.3	60.668	< 0.01
女性Female	12 327	498	4.0
小计Subtotal	25 238	798	3.2
年龄Age group
2~9	4 563	19	0.4	439.082	< 0.01
10~19	5 491	92	1.7
20~29	4 348	109	2.5
30~39	3 620	124	3.4
40~49	3 461	169	4.9
50~59	1 756	141	8.0
60~69	1 097	87	7.9
≥ 70	902	57	6.3
小计Subtotal	25 238	798	3.2
职业Occupation
干部Office staff	1 247	8	0.6	502.066	< 0.01
牧民Herdsman	14 022	742	5.3
学生Student	6 932	27	0.4
僧侣Monk	243	13	5.4
其他^a Others^a	131	8	6.1
学龄前Preschool child	2 663	0	0
小计Subtotal	25 238	798	3.2
文化程度Educational level
文盲Illiteracy	3 356	693	20.7	3 871.087	< 0.01
小学Primary school	16 020	54	0.3
初中Junior high school	3 069	23	0.8
高中Senior high school	1 509	11	0.7
大专Junior college	1 220	16	1.3
本科College	64	1	1.6
小计Subtotal	25 238	798	3.2
居住方式Living style
定居Settledown	6 677	55	0.8	162.104	< 0.01
冬季定居夏季游牧Settled in winter and nomadic in summer	18 561	743	4.0
小计Subtotal	25 238	798	3.2
地区Township
白玉乡Baiyu	5 246	248	4.7	881.983	< 0.01
门堂乡Mentang	2 537	32	1.3
索乎日麻乡Suohurima	4 585	67	1.5
索日麻乡Suorima	93	0	0
哇尓依乡Waeryi	3 218	349	10.9
哇塞乡Wasai	3 839	62	1.6
智青松多镇Zhiqingsongduo	5 720	40	0.7
小计Subtotal	25 238	798	3.2

职业 Occupation	2017年							2018年
	调查人数 No. investigated		合格人数 No. qualified		合格率/%Acceptance rate/%	χ²	P	调查人数 No. investigated	合格人数 No. qualified		合格率/%Acceptance rate/%	χ²	P
	调查人数 No. investigated	牧民Herdsman	合格人数 No. qualified	90	合格率/%Acceptance rate/%	χ²	P	调查人数 No. investigated	合格人数 No. qualified	77	合格率/%Acceptance rate/%	χ²	P	85.6	34.882	< 0.01	113	106	93.8	4.6	> 0.05
干部Office staff	86		79		91.9			66	61		92.4
学生^a Student^a	135		113		83.7			195	189		96.9
僧侣Monk	62		51		82.3			62	57		91.9
其他Other	58		44		75.9			13	13		100.0
合计Total	431		364		84.5			449	426		94.9

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[3]	HAN Shuai, LI Shizhu. Echinococcosis in China: current status and future disease control priorities [J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2025, 43(1): 1-5.
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