Abstract:
:The incidence of Lyme disease has continued to rise despite attempts to control its spread. Vaccination of zoonotic reservoirs of human pathogens has been successfully used to decrease the incidence of rabies in raccoons and foxes. We have previously reported on the efficacy of a vaccinia virus vectored vaccine to reduce carriage of Borrelia burgdorferi in reservoir mice and ticks. One potential drawback to vaccinia virus vectored vaccines is the risk of accidental infection of humans. To reduce this risk, we developed a process to encapsulate vaccinia virus with a pH-sensitive polymer that inactivates the virus until it is ingested and dissolved by stomach acids. We demonstrate that the vaccine is inactive both in vitro and in vivo until it is released from the polymer. Once released from the polymer by contact with an acidic pH solution, the virus regains infectivity. Vaccination with coated vaccinia virus confers protection against B. burgdorferi infection and reduction in acquisition of the pathogen by naïve feeding ticks.
journal_name
Vaccinejournal_title
Vaccineauthors
Kern A,Zhou CW,Jia F,Xu Q,Hu LTdoi
10.1016/j.vaccine.2016.07.059subject
Has Abstractpub_date
2016-08-31 00:00:00pages
4507-4513issue
38eissn
0264-410Xissn
1873-2518pii
S0264-410X(16)30657-0journal_volume
34pub_type
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