Cau 93: Virus viem nao NBan B

1/khnag:

a/ day truyen dich te hoc: cac vu dich thg xra vao mua he. Vr dc duy tri o dvat co xg sog hoag dai (dvcxshd)

1 so loai chim va gia suc (lon, cho, bo ngua..)

- vat trug gian truyen benh la muoi

DVCXSHD

Cttt Cttt

Cttt

Gia suc nguoi

2/ khnag gay benh cho dvat: chuot nhat, cac loai chim...

3/ k/nag gay benh chon g:

- khi bi muoi nhiem vr viem nao NB dot, ng co the mac benh viem nao NB. benh thg mac o tre em, tap trug o do tuoi duoi 10t, phan lon la the an, the dien hinh gap rat it. Tky u benh tu 6-16 ngay. o trg hop nhe thi lsang bhien nhe nhu: nhuc dau, sot nhe, kho chiu trog vai ngay

- the dien hinh: viem nao co the tu the nhe hoac bat dau dot ngot nhu nhuc dau nag, sot cao, cug co, thay doi cam giac, o tre em co the bi co giat

- b.nhan thg tu vog trog gdoan toan phat, ti le tu vog cao. B.nhan co the bi di chug, thg la bien loan tinh than, giam tri tue, thay doi ca tinh, cung co khi di chug sau 2 nam moi xhien

4/ co che: vr nhiem qua vet dot vao mau. Sau tky nhiem vr huyet, vr gay thg ton o nao, viem tbao tkinh, hach tkinh dem va viem quanh mach. nhug bien doi thg xay ra o chat xam va anh hg trc tien len trug gian va nao giua, lam cho b.nhan roi loan y thuc, hon me o nhieu muc do khac, co kem theo liet van dog

5/ phong:

- phong benh chung nhu virus Dengue: : diet muoi,diet bo gay = cach tha ca canh trong be nuoc,nap day noi dung nuoc,khoi thong cong ranh,pha nquang bui ram,phun thuoc diet muoi theo dinh ki,mac man.noi nhieu muoi tham man = permethein

- phog dac hieu: dug vacxin tiem cho tre <10 t, nhat la vug co dich luu hanh. Khi xra dich can tiem nhac lai cho tre em trog lua tuoi cam thu < 15t

Cau 94: Virus dai

1/dich te hoc: vr tap trug o cac nc nhiet doi. o chua vr dai la cac dvat mau nog bi dai (cho meo). Vr truyen tu dvat qua ng 1 cach ngau nhien qua vet can or vet cao

2/ khnag gay benh cho dvat: tat ca dvat mau nog deu co the nhiem vr dai. tky u benh cua vr dai hoag dai ko co dinh. Tbinh tu 7-14 ngay or lau hon. Co 2 the benh thg gap la hung du va liet, ket thuc deu gay chet. ben canh the cap tinh con co the ko tr.chug (thg gap o doi), o nhug con vat bi benh ng ta tim thay vr trog nao trog tuyen nc bot, hiem thay vr trog phu tag va trog mau

3/ k/nag gay benh cho ng:

- tky u benh tu 1-3 thag nhug cug co trg hop dai toi 8 thag. tky u benh tuy thuoc vao vi tri va muc do vet can: vet can cag gan TKTU va cag sau thi time u benh cag ngan. tky u benh noi chug yen lag, doi khi sot nhe, nhuc dau, kho chiu, buon non, chay nc mat nc mui. dau hieu co gtri chan doan nhat tky nay la dau hieu kien bo tai vet can.

- tky toan phat: ng benh bi kich thich tren moi giac quan( so nc, so gio, so tieg dog va a/sang. Cac co co that manh( dau don, trog dau b.nhan co cgiac bi de nen, so hai, lo au, sau do hug phan va cuoi cug den gdoan liet. tat ca b.nhan daii khi len con deu chet trog tinh trag bi liet co ho hap va tuan hoan.

4/ co che: vr dai thg xuyen co mmat trog he thog tkinh TU va he thog tkinh ngoai bien cua dvat bi dai. cac tbao tkinh o hach giao cam bi bong ra lam tuyen nc bot bi nhiem vr. Khi bi cac dvat dai can, vr tu nc bot vao co the qua vet can nhiem vao mau, tu do vr di toi phoi, gan, than. ngoai ra vr tien doc theo day tkinh huog tam, toi tuy sog roi len tkinh tu. Vr dai nhan len trog tbao tkinh, tuy sog va tkinh TU lam xhien 1 vat the ua acid trog bao tg cua tbao (tieu the Negri) ban chat la nucleocapsid tu do trog bao tg tap trug lai.

5/ Phog: tieu diet nhug dvat bi dai or nghi dai

- cho la dvat bi nhiem dai nhieu lai sog gan ng( han che nuoi cho, nuoi cho phai xich or nhot ko cho chay rog ra dg, tiem vacxin phog dai cho cho moi nam 1 lan vao mua xuan trc khi benh co the ptrien manh

6/ dieu tri; dvoi ng bi dvat dai can tiem khag huyet thanh (SAR) duoi da phia tren vet can trog vog 72h. sau do 1-2 ngay tiem vacxin phog dai.