Group 1: Avian Influenza Flashcards
is a type of zoonotic (or animal) influenza that affects wild birds and poultry and is caused by virus sub-types A(H5N1), A(H9N2
Avian influenza / bird flu
A(H5N1) incubation period ranges from _____ days on average and it also last up to 17 days.
2 to 5
Also, avian influenza is classified into two. According to Control for Disease Control and Prevention (CDC), as there as many subtypes of avian influenza A viruses they narrowed it into
- highly pathogenic and low pathogenic avian influenza
shows no or few signs of disease in poultry and wild birds, but it could be highly pathogenic when it mutates
low pathogenic avian influenza (LPAI)
manifests severe disease and cause high mortality in chickens
Highly pathogenic avian influenza (HPAI)
is brought on by influenza A viruses that typically only infect wild birds and farm poultry. Some of these strains have been linked to infections in people
Avian influenza
sometimes referred to as chemotactic cytokines, are a broad family of tiny, secreted proteins that communicate by activating heptahelical chemokine receptors on cell surfaces
Chemokines
a particular class of protein that affects the immune system and is produced by some immune and non-immune cells
Cytokine
are essential for the killing of virally infected cells and are a crucial part of the adaptive immune system.
cytotoxic t cell (ctls)
occurs when an infected person comes into contact with a susceptible person
Direct contact transmission
the time frame between a pathogen’s infection of an individual and the illness or disease it causes
Incubation period
there is no a direct human-to-human interaction. Contact between a reservoir and contaminated surfaces or objects, or between a reservoir and vectors like rats, dogs, flies, mites, fleas, and ticks, happens -
Indirect contact transmission
what are the symptoms of Avian influenza?
symptoms are similar to the common flu-like symptoms such as headache, sore throat (inflamed or painful throat), may have runny or congested nose because of the secretions that is blocking the airways, then may experience fatigue or body weakness due to sickness. Another, can encounter fever with shivers and chills (37.8 - 38°C) along with dry cough and shortness of breath or difficulty of breathing which are both upper respiratory infections.
It usually tales _____ days for the first symptoms to appear after that follows a quick deterioration which precedes or progress severely that may lead to pneumonia, respiratory failure, multi-organ failure, septic shock -
3-5
You need to be tested once you’re having flu-like symptoms that lasted for several days already or you happen to be exposed to:
A poultry farmer
o A traveler visiting affected areas
o Exposed to infected birds o Someone who eats undercooked poultry or eggs
o A healthcare worker caring for infected patients
o A household member of an infected person