Thermoresistant Newcastle disease vaccine effectively protects SPF, native, and commercial chickens in challenge with virulent virus.

Background: Due to the more stability and a better homogenecity in immune response, the use of thermoresistant vaccines in different chicken types has been increased.

Objective: This study aimed to evaluate the efficacy of a newly developed Newcastle disease vaccine (ND.TR.

High frequency of among patients with atypical pneumonia in Tehran, Iran.

Introduction: is a major cause of atypical community-acquired pneumonia (CAP) with a prevalence range of 15-20% and up to 40% in adults and children, respectively. In Iran, the recorded frequency ranges between 1-6.15%.