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Parainfluenza viruses circulate year-round, with each type having its own seasonal patterns. The viruses have a tendency towards different complications: influenza is more likely to cause severe pneumonia in high-risk groups; parainfluenza is more likely to cause croup in children.
Although kennel cough is considered to be a multifactorial infection, there are two main forms. The first is more mild and is caused by B. bronchiseptica and canine parainfluenza infections, without complications from canine distemper virus (CDV) or canine mastadenovirus A (formerly canine adenovirus-1). This form occurs most regularly in ...
Croup (/ k r uː p / KROOP), also known as croupy cough, is a type of respiratory infection that is usually caused by a virus. [2] The infection leads to swelling inside the trachea, which interferes with normal breathing and produces the classic symptoms of "barking/brassy" cough, inspiratory stridor and a hoarse voice. [2]
Suggested vaccines include canine influenza, Bordetella and canine parainfluenza. Experts also suggest keeping dogs away from communal spaces such as dog parks, boarding facilities and groomers.
The virus genome has high similarity with human parainfluenza virus 1 (HPIV-1) and the two viruses share common antigenic determinants. The study that was published in 2011 demonstrated that SeV neutralizing antibodies (which were formed due to human parainfluenza virus type 1 past infection) can be detected in 92.5% of human subjects worldwide ...
The common cold is an infection of the upper respiratory tract which can be caused by many different viruses. The most commonly implicated is a rhinovirus (30–80%), a type of picornavirus with 99 known serotypes. [33] Other commonly implicated viruses include coronaviruses, adenoviruses, enteroviruses, parainfluenza and RSV. [34]
Mammalian influenza viruses tend to be labile, but can survive several hours in mucus. [57] Avian influenza virus can survive for 100 days in distilled water at room temperature, and 200 days at 17 °C (63 °F). The avian virus is inactivated more quickly in manure, but can survive for up to two weeks in feces on cages.
In most years, in the majority of samples tested, the influenza virus is not present (see figure above). In the United States during the 2008–9 influenza season through 18 April, out of 183,839 samples tested and reported to the CDC, only 25,925 (14.1%) were positive for influenza. The percent positive reached a maximum of about 25%. [5]