西非三國埃博拉疫情防控措施效率的研究
[Abstract]:The Ebola outbreak in Guinea in West Africa, which began in February 2014, is the largest outbreak in nearly 40 years and poses a serious threat to West Africa and beyond. Three countries in West Africa (Guinea, Liberia, Sierra Leone) are the world's most severely affected regions, accounting for more than 99.9 percent of the world's cases. With the help of the World Health Organization (WHO) and other medical organizations, the prevention and control measures of the epidemic in West Africa have been effectively implemented, which has played a key role in the final control of the epidemic. Based on the existing kinetic models, the epidemic dynamics model of Ebola virus transmission in West Africa has been established in this paper. The efficiency of epidemic prevention and control measures in three West African countries was studied and analyzed from two aspects: SEIR model and model with isolation chamber. The main work of this paper is as follows: (1) based on the SEIR model and the Ebola data published by the World Health Organization, we get the transmission rate of the three West African countries in the initial stage of Ebola uncontrolled. The result shows the urgency and importance of Ebola prevention and control work. (2) considering the difference of the intensity of prevention and control measures in different period of Ebola epidemic situation, We define the piecewise function b (t) to establish a new model and obtain the values of the control factors K1 and K2 of the three countries. Then, we compare the data obtained horizontally, and analyze the differences in the efficiency of preventive and control measures among the three countries. The conclusion is: Liberia has the highest intensity of preventive and control measures, Sierra Leone is the second, Guinea is the smallest. The results are in agreement with the actual situation, which verifies the correctness of the conclusions. (3) based on the difference of prevention and control methods before and after Ebola onset, we have established the SE_gE_qE_ (gg) IgI _ (gg) I _ (gq) R model and SE_gE_qI_gI_qI_ (gq) R model, which can reflect the actual situation well. The values of the unknown parameters a _ S _ 1 / a _ 2C _ S _ 1 and C _ 2 in the model are obtained. Based on the data analysis, we evaluate and compare the effects of preventive measures and control measures in three West African countries respectively. Then, we conducted a comprehensive evaluation and concluded that Liberia has the greatest intensity of preventive and control measures, Sierra Leone second and Guinea the smallest. Finally, we analyze the sensitivity of the parameters. The results obtained from the model are in good agreement with the infection data published by the World Health Organization, and the evaluation results are in good agreement with the actual situation. The efficiency of epidemic prevention and control in the three countries is revealed by quantitative analysis. The research in this paper has certain reference significance to evaluate the effectiveness of prevention and control measures, thus has certain guiding significance to how to adopt more effective prevention and control strategy.
【學(xué)位授予單位】:重慶大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:O175
【相似文獻】
相關(guān)期刊論文 前4條
1 謝煉欽;;淺談口蹄疫疫情防控政策完善[J];科技信息;2012年35期
2 周濤;汪秉宏;韓筱璞;尚明生;;社會網(wǎng)絡(luò)分析及其在輿情和疫情防控中的應(yīng)用[J];系統(tǒng)工程學(xué)報;2010年06期
3 ;研發(fā)動態(tài)[J];中國生物工程雜志;2013年04期
4 ;[J];;年期
相關(guān)會議論文 前4條
1 林云彪;王榮洲;李艷敏;;論農(nóng)業(yè)植物疫情防控的機制創(chuàng)新[A];現(xiàn)代植保建設(shè)創(chuàng)新與實踐[C];2012年
2 李艷霞;李彥清;;將PDCA程序運用于門診甲流疫情防控管理的體會[A];“全國護理管理改革創(chuàng)新”高層論壇、全國護理新理論、新方法、新技術(shù)研討會論文匯編[C];2011年
3 李杰;錢玲;馬煜;葛紅;;我國政府風(fēng)險溝通理念及實踐——以衛(wèi)生部應(yīng)對甲型H1N1流感疫情為例[A];第五屆中國健康傳播大會論文集[C];2010年
4 李杰;錢玲;馬煜;葛紅;;我國政府風(fēng)險溝通理念及實踐——以衛(wèi)生部應(yīng)對甲型H1N1流感疫情為例[A];第四屆中國健康傳播大會優(yōu)秀論文集[C];2009年
相關(guān)重要報紙文章 前10條
1 記者 孟曉明 實習(xí)記者 孫衛(wèi)春 葉嬌;“九·六”疫情防控先進受表彰[N];吐魯番報(漢);2008年
2 吳建峰 陳向;南通局針對季節(jié)特點制定疫情防控措施[N];中國國門時報;2009年
3 記者 馬文生;“提升邊境疫情防控水平北疆行”啟動[N];中國國門時報;2010年
4 記者 高小萍;國家邊境動植物疫情防控聯(lián)合督察組來博調(diào)研[N];博爾塔拉報(漢);2010年
5 記者 楊毅;加強甘肅農(nóng)作物重大病蟲疫情防控[N];中國經(jīng)濟時報;2012年
6 記者 馬德明;我省多措并舉提升植物疫情防控水平[N];河北經(jīng)濟日報;2013年
7 記者 張磊;全面落實各項疫情防控措施[N];健康報;2013年
8 李文;傳達國務(wù)院常務(wù)會議精神 部署下一步疫情防控工作[N];中國人口報;2013年
9 記者 鄒平;扎實有效做好疫情防控工作[N];揚州日報;2013年
10 記者 顧雷鳴;科學(xué)有序做好流感疫情防控工作 確保人民群眾生命安全身體健康[N];新華日報;2013年
相關(guān)碩士學(xué)位論文 前2條
1 楊靜雅;西非三國埃博拉疫情防控措施效率的研究[D];重慶大學(xué);2016年
2 謝煉欽;動物疫情防控政策績效評價研究[D];湖南農(nóng)業(yè)大學(xué);2012年
,本文編號:2238355
本文鏈接:http://sikaile.net/kejilunwen/yysx/2238355.html