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Vaccines for Pandemic Influenza (Hardcover, 2009 ed.)
Loot Price: R8,354
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Vaccines for Pandemic Influenza (Hardcover, 2009 ed.)
Series: Current Topics in Microbiology and Immunology, 333
Expected to ship within 12 - 17 working days
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Recent years have seen unprecedented outbreaks of avian influenza A
viruses. In particular, highly pathogenic H5N1 viruses have not
only resulted in widespread outbreaks in domestic poultry, but have
been transmitted to humans, resulting in numerous fatalities. The
rapid expansion in their geographic distribution and the
possibility that these viruses could acquire the ability to spread
from person to person raises the risk that such a virus could cause
a global pandemic with high morbidity and mortality. An effective
influenza vaccine represents the best approach to prevent and
control such an emerging pandemic. However, current influenza
vaccines are directed at existing seasonal influenza viruses, which
have little or no antigenic relationship to the highly pathogenic
H5N1 strains. Concerns about pandemic preparedness have greatly
stimulated research activities to develop eff- tive vaccines for
pandemic influenza viruses, and to overcome the limitations inh-
ent in current approaches to vaccine production and distribution.
These limitations include the use of embryonated chicken eggs as
the substrate for vaccine prod- tion, which is time-consuming and
could involve potential biohazards in growth of new virus strains.
Other limitations include the requirement that the current inac-
vated influenza vaccines be administered using needles and
syringes, requiring trained personnel, which could be a bottleneck
when attempting to vaccinate large populations in mass campaigns.
In addition, the current inactivated vaccines that are delivered by
injection elicit limited protective immunity in the upper
respiratory tract where the infection process is initiated.
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