Din grupa afectiunilor specifice sezonului rece fac parte si bolile aparatului respirator. Desi poate aparea in orice perioada a anului, traheobronsita infectioasa canina este mai frecvent intalnita in anotimpul rece, pe fondul temperaturilor scazute si al umezelii. Afectiunea se refera la inflamarea tractului respirator superior, inclusiv a laringelui, traheei si bronhiilor. Denumirea comuna a bolii este “tusea de canisa” si este catalogata drept sindrom deoarece este cauzata de unul sau mai multi agenti virali sau bacterieni.
Boala este foarte contagioasa si se transmite direct de la un caine la altul, prin contaminarea castroanelor de mancare sau a locurilor de dormit ori indirect, prin secretiile nazale sau orale provenind de la caini bolnavi si raspandite pe calea aerului.
Tusea de canisa are o perioada de incubatie relativ scurta, intre 4 si 8 zile. In cele mai multe cazuri, cainele pare sanatos, dar are o tuse persistenta. Initial, tusea e umeda si productiva, apoi devine seaca si aspra. Tusea e adesea stimulata de emotii puternice sau de presiune asupra traheei. In cele mai multe cazuri, boala dispare de la sine, in maximum 3 saptamani. Totusi, unii caini raman cu o tuse cronica ce poate dura in jur de 6 saptamani. Acest lucru se intampla mai ales la pui sau la cainii batrani. La cateii foarte tineri, formele severe genereaza in pneumonii.
Liviu Harbuz,
DVM Ph. D
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