臺北市
34°
( 36° / 32° )
氣象
2019-07-03 | 公共電視

Drones Dispatched to Combat Dengue Fever|防治登革熱 高雄首採無人機空中噴藥

A total of 28 indigenous cases of dengue fever have been confirmed in Kaohsiung. To prevent more cases of cluster infections, health officials conducted aerial spraying and cleanup operations at a fruit and vegetable market. On the other hand, 4 indigenous cases of dengue fever in Tainan have been confirmed. The CDC believes that the four cases belong to the same cluster. Therefore, the East Market in Kaishan Borough has been ordered to shut down on July 4 and July 5 for disinfection operations.

Health Officials prepared the insecticides and used a drone as a tool to spray on the roof of the fruit and vegetable market. This is the first time that a drone was used for dengue fever prevention and control. The machine can spray up to 13 liters of insecticides and it can help disease control personnel to overcome problems that no equipment nor people can solve.

Some roof gutters are as long as 30 meters. Those high-pressure water sprays can only reach up to 10 meters. If we send men up to the roof, the height is about 15 to 20 meters, which is very dangerous. The sprayer also cannot cover an area of 2,000 pings in aerial prevention.

This fruit and vegetable market has 25 roof gutters. When rain fills up the gutters and without direct sunshine, it creates a potential mosquito breeding habitat.The National Mosquito-Borne Disease Control Research Center at the National Health Research Institute has cooperated with GEOSAT Aerospace Technology Inc. to dispatch insecticide spraying drones for free. However, it starting raining shortly after the drone had taken off.

We would like to avoid the rain as much as possible because some parts of the drones are not water-proof. We try our best to let the drones work in light drizzles, but if there's heavy rain, then it is advised not to operate the drones.

The city government expressed that although rain does have an impact on the effect of the spray, it can still last about more than half a month. This is still crucial during the high-risk period. On July 2nd, there is a case of imported dengue fever reported in Kaohsiung. On the 3rd, the Public Health Center in Taiwan announced that another 2-year-old toddler has also been infected with dengue fever.

We think this is a case of regional cluster infection, this is confirmed. As for the type of virus, we will categorize them in the future to see if they are the same type. This will take some time.

The CDC personnel said the 4 confirmed cases in Tainan is considered a regional cluster infection because these 4 people have all visited the East Market in Kaishan Borough. The city government will continue to use insecticide spray to kill mosquitoes to prevent dengue fever. The market will be closed on July 4th and 5th.

衛生人員調配好登革熱藥水後,由飛手操作無人機,沿著果菜市場屋頂噴灑,一次最多能噴灑13公升藥水,這是無人機首次運用在登革熱防治,幫防疫人員克服設備及人力無法解決的問題。

高雄市三民區衛生所長 陳朝東表示:「有些屋簷溝,大概長達30幾公尺,這些高壓水柱的長效水噴,只能到達10公尺左右,這個人員上去,高度到達15到20公尺是非常危險,而且現在的防疫水噴的水袋,大概沒辦法及於這將近2千坪的一個空中的防治作為。」

這處果菜市場屋頂有25條屋簷溝,常在雨後積水又無法被陽光直射,多年來都是病媒蚊孳生熱點,這次由國衛院蚊媒中心請產學合作的經緯航太公司出動空拍機免費協助噴藥,但天空不作美,出發沒多久就碰上大雨暫停。

經緯航太公司工程師 溫修賢表示:「雨的部分,我們會盡量避免,因為基本上無人機的部分,它還是有很多組件會怕水,所以我們盡量,微雨的時候還可以作業,像大雨的話,我們就不建議進行操作。」

市府表示,雖然雨水會影響藥效,但藥效還是能超過半個月,在近期疫情高風險期,是不得不為的作法,因為高雄2號又新增1起境外移入登革熱,而台南市衛生局則是在3號公布一起2歲幼童感染登革熱的新案例。

衛福部南區疾病管制局主任 李翠鳳表示:「我們認為地緣上的群聚,這個是確定的地緣上,那至於他們病毒,將來去分型,是不是真的都同一個,目前因為這個,需要一點時間。」

防疫人員研判,台南這4例有地緣性,因為4人都曾在中西區開山里東菜市場活動,不排除會有群聚感染,市府強力清除孳生源,4號、5號休市,以化學噴藥來防治。

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