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Flu vaccine
The flu vaccine is a vaccine
to protect against the
highly variable influenza
virus. The annually updated
trivalent flu vaccine for
the 2005-2006 season
consists of hemagglutinin
(HA) surface glycoprotein
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Nasal congestion
Nasal congestion is the
blockage of the nasal
passages usually due to
excessive secretion of mucus
that is caused by a virus
and typically resolves
spontaneously within a week.
It is also known as nasal
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Upper respiratory tract infection
Upper respiratory
infections, commonly
referred to the acronym URI,
is the illness caused by an
acute infection which
involves the upper
respiratory tract: nose,
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Avian flu
Avian flu (also "bird flu",
"avian influenza", "bird
influenza"), means "flu from
viruses adapted to birds",
but is sometimes mistakenly
used to refer to both other
flu subsets (such as H5N1
flu) or the viruses that
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Incubation period
Incubation period, also called the latent period or latency period, is the time elapsed between exposure to a pathogenic organism, or chemical or radiation, and when symptoms and signs are first ... > more -
Spanish flu
The Spanish Flu Pandemic, also known as La Grippe Espagnole, or La Pesadilla, was an unusually severe and deadly strain of avian influenza, a viral infectious disease, that killed some 50 million to ... > more -
Influenza pandemic
An influenza pandemic is a large scale epidemic of the influenza virus, such as the 1918 Spanish flu. The World Health Organization (WHO) warns that there is a substantial risk of an influenza ... > more -
Antiviral drug
Antiviral drugs are a class of medication used specifically for treating viral infections. Like antibiotics, specific antivirals are used for specific viruses. Antiviral drugs are one class of ... > more -
Common cold
Acute nasopharyngitis, often known as the common cold, is a mild viral infectious disease of the the upper respiratory system (nose and throat). Symptoms include sneezing, sniffling, nasal ... > more -
Transmission (medicine)
In medicine, transmission is the passing of a disease from an infected individual or group to a previously uninfected individual or group. In order to survive, microorganisms that require human hosts ... > more -
Global spread of H5N1 in 2006
The global spread of (highly pathogenic) H5N1 in birds is considered a significant pandemic threat. While prior H5N1 strains have been known, they were significantly different from the current H5N1 ... > more
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