In immunocompromised patients, influenza infection may progress to prolonged viral shedding from the respiratory tract despite antiviral therapy. We describe chronic influenza A virus infection in an immunocompromised child who had prolonged shedding of culturable influenza virus in stool.

In humans, the most common types of infection are respiratory tract infections, among which viral infections predominate. Viruses can also infect the low respiratory tract, causing bronchiolitis, bronchitis and pneumonia. The objective of this review article was to show epidemiological, pathophysiological, clinical and therapeutic aspects of viral community-acquired pneumonia. These types of pn...

Detection of influenza virus in oropharyngeal swabs collected during wild bird surveillance is assumed to represent respiratory infection, although intestine is the main site of infection. We tested this assumption by histological examination of the respiratory tract of wild Mallards with virus-positive oropharyngeal swabs. Thirty-two of 125 Mallards tested had viral-RNA positive oropharyngeal ...

BACKGROUND Although adenovirus (ADV) infection occurs steadily all year round in Korea and the identification of respiratory viral coinfections has been increasing following the introduction of multiplex real-time polymerase chain reaction tests, the clinical impact of viral coinfection in children with ADV infection has rarely been reported. MATERIALS AND METHODS Medical records of children ...

In 2012, a novel coronavirus associated with severe respiratory disease in humans emerged in the Middle East. Epidemiologic investigations identified dromedary camels as the likely source of zoonotic transmission of Middle East respiratory syndrome coronavirus (MERS-CoV). Here we provide experimental support for camels as a reservoir for MERS-CoV. We inoculated 3 adult camels with a human isola...

At the end of 2019, severe acute respiratory syndrome coronavirus 2SARS-CoV-2) emerged in Wuhan, Hubei Province, China, and infected over 4 million people around the world. Individuals with coronavirus disease 2019 (COVID-19) have an influenza-like illness and respiratory tract infections. We can categorize patients in three main groups: asymptomatic infected cases, patients with mild upper res...

Feline Viral Upper Respiratory Tract Disease Feline viral upper respiratory tract disease is typified by signs of rhinosinusitis, conjunctivitis, lacrimation, salivation, and/or oral ulcerations. The principal causative agents are feline herpesvirus type 1 (FHV-1 ) and feline calicivirus (FCV). These viruses are host-specific and pose no known human risk. Other infectious agents (e.g. Bordetell...

BACKGROUND Bacterial colonisation of the respiratory tract is commonly described and usually thought to be of no clinical significance. The aim of this study was to examine the presence and significance of bacteria and viruses in the upper respiratory tract of healthcare workers (HCWs), and association with respiratory symptoms. METHODS A prospective cohort study was conducted in China and 22...

this is a report of a case with unilateral cavernous sinus thrombosis due to ipsilateral ethmoid sinusitis. a 10 year old female was admitted in our hospital with severe headache, purulent postnasal discharge, right eye proptosis and third cranial nerve palsy in the same eye. she had history of viral upper respiratory tract infection and then acute otitis media which did not improve with routin...

There is a high incidence of upper respiratory viral infections in the human population, with infection severity being unique to each individual. Upper viruses have been associated previously secondary bacterial infection, however, several cross-sectional studies analyzed literature indicate that an inverse relationship can also occur. Pathobiont abundance and/or dysbiosis impair epithelial int...