恶性疟疾

发布者:Artepharm 发布时间:2017-03-02浏览量:781 字体大小:【】【】【

恶性疟疾 - 简介

恶性疟疾在我国现较少见,但高发于非洲热带地区.此种由恶性疟原虫感染所致的传染病,常以畏寒、发热、头痛为首发症状,并发症多,若不及时治疗,可危及生命。

恶性疟疾 - 发病机理

红细胞内期疟原虫裂殖子胀破红细胞,裂殖子和疟原虫的代谢产物、残余和变性的血红蛋白以及红细胞碎片等一并进入血流;其中相当一部分可被多形核白细胞及单核吞噬细胞系统的细胞吞食,刺激这些细胞产生内源性热原质,与疟原虫代谢产物共同作用于下丘脑的体温调节中枢引起发热。

恶性疟疾 - 病理改变

贫血:疟疾发作几次后,可出现贫血症状。发作次数越多,病程越长,贫血越重。红细胞内期疟原虫直接破坏红细胞,是疟疾患者发生贫血的原因之一。脾肿大主要原因是脾充血与单核吞噬细胞增生。吞噬细胞因含有大量疟色素,脾切面颜色变深。脾肿大可达脐下,其重量由正常人的150g增到500g,甚至1000g以上。

恶性疟疾 - 流行病学

疟疾在世界上分布广泛,是严重危害人体健康的寄生虫病之一,是亚非拉广大地区的重要公共卫生问题。据统计,现在全球仍有1.2亿疟疾患者,带虫者约近3亿;非洲每年还有百万儿童死于疟疾。人群中除由于遗传基因决定对某些疟原虫具先天免疫力,及高疟区婴儿可从母体获得一定的抵抗力外,对疟原虫普遍易感。在流行区,成人反复感染的机会多,可呈带虫状态,而易感者主要是儿童。孕妇生理功能特殊,免疫力低,易感疟疾。此外,非疟区的无免疫力人群进入疟区,也为易感者,且可引起疟疾暴发流行。

(来源:互动百科)

 

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11

Aneurysmgirl

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2014-02-11 19:51:40

10

Dick

Talha: Yes, this was news to me too, Talha and welcome to my blog! Thanks for the comemnt!writerzblock: Yes, I pity him! But this person looks seriously and sincerely doing his job! We get the good result from him...did you read the article? They are able to locate the disease from the type of mosquitoes from the locality. Hats off to people like him.deepsspeakingup: I never knew about this method, great, isn't it?Thank you, this is the result of my allergy to all types of mosquito repellents!kanagu: Yes, we have to help the govt. to take action without just criticising them.UmaS: We have done that, closing the windows at 5p.m. etc. We are surrounded by plants and the ditch in front of our house and not able to contain mosquitoes in any way, Uma and the allergy problem is there for both of us. This is the only way we are able to shoo away the insects.Hema: Welcome here, Hema! Yes, our people do not help keep the area clean, in any way.Yes, I too follow your method, Hema. I always keep a spare bag and bring back home all the eat raps without throwing them on the road. http://mlteqszn.com [url=http://ilvlpcavum.com]ilvlpcavum[/url] [link=http://mjwndw.com]mjwndw[/link]

2013-08-14 04:42:58

9

Avnish

Destination Infinity: This method is foellwod in Chennai too, inside the city area. They seem to be doing their job very well, here too. But you can notice that the garbage is thrown by people into the box but most of the time it misses the target and falls outside the box. Again the same problem, they fly everywhere, the dogs spread them to the surrounding area, looking for food. They don't take the trouble of going near the garbage box and put their bag INTO it! I have seen it with my own eyes. Then, if the lorry doesn't come to pick up the garbage for 2 days, they will complain/write to the 'letter to the editor'!I am allergic to 'all out' smell too! So at present, bat is the best weapon!Ashwini Sriram: This is news to me too, Ashwini and thank you!Radha: Yes, this is new to me too!We have too, otherwise we are the sufferers!Swaram: Thank you, Swaram! The Corporation is doing their best, here!Renu: Yes, we want everything to be done by the government without an iota of co-operation from us!Bikram: Thanks a ton, Bikram...we are so used to Punjabi words nowadays...Chak de fatte was used by Daler Mehandi, when he was a judge in Saregamapa super singers! Do you know...he is a very good classical singer too!For us, UK was heaven in terms of cleanliness, Bikram, after seeing so much filth here!Roshmi Sinha: Hahaha...what an idea Roshmiji!

2013-08-12 21:04:47

8

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2012-07-19 03:07:05

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2012-07-17 01:11:48

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2012-07-17 01:09:03

4

Vidya

well the other problem with mriaala is it is not sexy enough, so it is difficult to make a moral judgment about the people who get bit by a mosquito (although I am sure someone will eventually give it a go). Therefore we cannot rush in to save their souls from the evils of sin which gave them a mosquito bite, or the evils of not being productive members of the global economy. This is all about marketing, so I say we find a way to link mosquito bites to questionable moral character or being stupid and then we can rage against the mriaala before the people who seem to actually count as worthy to live in our current social/political/global mindset start feeling the ague set in.

2012-07-16 01:16:04

3

Abdul

That's an expert answer to an interesting quseotin

2012-07-16 00:44:42

2

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2011-12-21 00:27:37

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