美國 PED 反撲仔豬死亡率降到 30 %？

taiwanp

重複爆發的豬流行性腹瀉病毒在印第安納的農場證實
日期：2014年5月29日
第二次爆發在農場駁斥的理論，發展豬免疫力，豬流行性腹瀉病毒感染後
豬流行性腹瀉  （PED）病毒已被證明更加難以遏制獸醫比早先的想法，一心印第安納州的農場證實PED病毒的第二次爆發。該農場不想被公開確認，但其授權的獸醫，馬特·阿克曼，發言代表其。

州和聯邦的努力，杜絕PED病毒已在一個假設，即豬，一旦感染，開發免疫力，不會被疾病再次在至少幾年折磨操作，根據路透社的 報導。同樣，忍受了疾病的農場不知道挨二次爆發。印第安納的農場是第一個公開確認重複爆發。

在印第安納情況下，基因測序顯示的PED病毒擊中豬的“精確一脈相承”的，並再次2014年3月在農場2013年5月，阿克曼說，誰收集的樣本從農場。出生仔豬母豬感染第二次有大約30％的死亡率，與初生仔豬最早爆發期間，近100％的死亡率相比，他說。

阿克曼不知道為什麼在印第安納的農場母豬被重新感染原爆發期間暴露於病毒後，去年。當時，他們大約半年到一年歲。母豬是有仔豬，並通過有限的免疫力給他們​​的後代，他說。阿克曼說，在農場做一個“環衛出色的工作，”使之更令人費解的是，以PED病毒的重複爆發怎麼可能發生。

原文：
Repeat PEDv outbreak confirmed at Indiana farm
Date: 2014-05-29
Second outbreak at farm disproves theory that pigs develop immunity to PEDv after infection
Porcine epidemic diarrhea (PED) virus has proven more difficult to contain than veterinarians earlier thought, as one Indiana farm confirmed a second outbreak of PED virus. The farm did not want to be publicly identified, but authorized its veterinarian, Matt Ackerman, to speak on its behalf.

The state and federal effort to stamp out PED virus had operated on an assumption that a pig, once infected, develops immunity and will not be afflicted by the disease again for at least a few years, according to a Reuters report. Likewise, farms that had endured the disease were not known to suffer secondary outbreaks. The Indiana farm is the first to publicly confirm a repeat outbreak.

In the Indiana case, genetic sequencing showed the "exact same strain" of PED virus hit pigs at the farm in May 2013 and again in March 2014, said Ackerman, who collected samples from the farm. Piglets born to sows that were infected for a second time have a death rate of about 30 percent, compared with a nearly 100 percent death rate among newborn piglets during the first outbreak, he said.

Ackerman did not know why the sows on the Indiana farm were re-infected after being exposed to the virus during the original outbreak last year. At the time, they were about six months to a year old. The sows are having piglets and passing limited immunity on to their offspring, he said. Ackerman added that the farm does an “excellent job of sanitation,” making it more puzzling as to how a repeat outbreak of PED virus could occur.

新聞來源

gordonx

其實台灣現在也出現同樣的情形  在我的場從感染至今已經過了3個月了  保育豬還是會有點狀PED的感染  母豬的infertility也很嚴重  後PED時代也許乳豬的死亡降低了  但是就一般習慣用抗生素控制下痢的大場  應該還是很傷腦筋的

蘇少儀

這是一般媒體的報導--不能排除炒作的可能性
未經科學方法證實
如果真有此一現象,絕對不會是一個場的病例,必然會是很多場出現相同的問題

天蓬元帥

可能性相當高

蘇少儀

Google了一下,都是商業性的媒體在報導
而且只此一戶................

沒關係,USDA已要求獸醫師要回報疫情.看USDA的相關報導就可知一二........

taiwanp

我這裡的出生乳豬已經沒有下痢死亡 .... 不過，保育和肉豬的下痢不定期出現 .... 我的也剛過兩個月而已 ....

在中 PED 之前，離乳後幾乎沒有下痢的狀況說 ....

這個病毒真的很奇妙 ~~ 不過，我也認為常常看到狀況是好事 ... 算自然接種！！只要出生乳豬不要死就好！！

我聽到一個案例：有人在嘉義大學冰了很多當初中 PED 死的病材 .... 每隔幾個月拿回來接種一次 .... 不過，我對此作法存疑？？因為，感覺 .... 它一直存在豬的身上 ....

luluminpig

→

luluminpig

聽說冰過的病材病毒量愈來愈少!

蘇少儀

taiwanp 發表於 2014-6-2 06:11
我這裡的出生乳豬已經沒有下痢死亡 .... 不過，保育和肉豬的下痢不定期出現 .... 我的也剛過兩個月而已 ... ...

有人信上帝,有人信佛,有人信....................
信什麼都沒關係!!!心安就好!!!