Viral Infection in Asthma

Viral infection in asthma.

In bronchial asthma, respiratory virus infection involves several issues: 1) respiratory virus infection in infancy is a risk factor for, and may predispose to, the development of asthma later in life; 2) respiratory virus infection is associated with the acute exacerbation of bronchial asthma; and, 3) glucocorticosteroids (GC) are not adequate for controlling asthma-related symptoms upon respi...

Determine Efficacy of a Short Course of Montelukast in Children with Intermittent Asthma and Viral Infection

Introduction Mild intermittent asthma is common in children and viral infections are responsible for the majority of exacerbations. As leukotrienes are potent inflammatory mediators, some studies have shown that Montelukast, a leukotriene receptor antagonist, may be effective on reduction of asthma symptom. To determine whether a short course of Montelukast in asthmatic children with common col...

Viral infection in wheezy bronchitis and asthma in children.

Virus isolation was attempted on 267 out of 360 patients with wheezy bronchitis or asthma admitted to hospital during a 3-year period. Viruses were isolated on 39 occasions, the most common being respiratory syncytial virus and rhinovirus. The peak months for virus isolation were February and August. Virus isolation was significantly more common in readmissions than in first admissions (P less ...

Asthma exacerbation and viral infection in adult patients, Brazil.

Persistent bovine viral diarrhea virus (BVDV) infection in cattle herds

Bovine viral diarrhea virus (BVDV) is a significant pathogen associated with gastrointestinal, respiratory, and reproductive diseases of cattle worldwide. It causes continuous economic losses to the cattle industry primarily due to decreased reproductive performance. The ability of virus to cross the placenta during early pregnancy can result in the birth of persistently infected (PI) calves. P...