Abd El-Khalick, M. A. <br/><br/>
Preparation of a trivalent oil-emulsion vaccine of inactivated Newcastle disease virus, infectious bronchitis virus and Haemophilus paragallinarum  [electronic resource]. 
 تحضير لقاح ثلاثي مثبط زيتي من النيوكاسل و الالتهاب الشعبي المعدى والكوريزا. 

 - p.12-17. 
<br/><br/>Includes references. 
<br/><br/> Monvalent inactivated oil-emulsion, Newcastle disease virus (NDV), infectious bronchitis virus (IBV) and Haemophilus paragallinarum vaccines as well as a trivalent one (NDV + IBV + HP) were prepared. The cellular and humoral immune responses of chicken to these vaccines were evaluated by using lymphocytes blastogenesis assay, haemagglutination-inhibition, serum neutralization, tube agglutination and challenge tests. The results showed that the trivalent vaccine was safe, efficient as monovalent vaccines and protected chicken against Newcastle, Infectious bronchitis and infectious coryza. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chickens--Virus diseases.<br/>Poultry--Virus diseases.<br/>Newcastle disease virus--Treatment.<br/>Infectious bronchitis in poultry.<br/>Infectious bronchitis in poultry--Vaccination.