respiratory syncytial virus infection in immunocompromised patients, especially those with defects in cell mediated immunity is associated with high morbidity and mortality. lymphocytopenia is an important factor associated with progression of upper to lower respiratory tract infection. the only licensed antiviral treatment for rsv available currently is ribavirin, although additional immunomod...

background: to investigate the prevalence of antibiotic usage in children aged <5 years with acute respiratory tract illness (arti) in iran. materials and methods: data were collected from a national health survey conducted in 2010 (iran’s multiple indicator demographic and health survey). participants of this cross-sectional study were selected by multistage stratifi ed cluster-random sampling...

the link between allergic rhinitis and asthma is well known. bronchial hyperreactivity (bhr) may be present in rhinitis. the present study was aimed to compare airway responses in patients  with rhinitis symptoms alone following exercise challenge, and to  determine relationship of two different respiratory function tests. 98 subjects with rhinitis were investigated by spirometry and impulse os...

The high prevalence of inflammatory diseases the upper respiratory tract brings this pathology to forefront, occupying up 90% cases contacting specialists among all infectious diseases. main etiological factor in occurrence acute tract, such as rhinitis, rhinosinusitis, pharyngitis, is defeat a viral agent. At same time, damaging agents are extremely diverse. In turn, an incorrectly selected in...

background: the most common laryngeal mass in children is recurrent respiratory papillomatosis (rrp). studies have attempted to correlate viral typing and its aggressiveness. method: 29 patients with histologically confirmed rrp enrolled in adjuvant therapies. patients underwent several surgical interventions. results: hpv genotyping demonstrated 45% hpv-6 and 55% hpv-11. the mean age at the fi...

Respiratory infectious diseases are mainly caused by viruses or bacteria that often interact with one another. Although their presence is a prerequisite for subsequent infections, viruses and bacteria may be present in the nasopharynx without causing any respiratory symptoms. The upper respiratory tract hosts a vast range of commensals and potential pathogenic bacteria, which form a complex mic...

BACKGROUND The protection of breastfeeding against respiratory tract infections in the first year of life has often been suggested. Few studies examined the effect of breastfeeding on respiratory tract infections after infancy. OBJECTIVE To examine the association between breastfeeding with lower respiratory tract infections (LRTI) and upper respiratory tract infections (URTI) after infancy u...

background upper respiratory tract infections (urti) in children are the most frequent reasons for visiting a family doctor, commonly resulting in inappropriate prescription of antibiotics. in underdeveloped countries, a viral respiratory tract infection may be followed by serious complications. more than 200 viral species are associated with respiratory tract diseases in humans and this number...