Abstract:
:Panton-Valentine leukocidin (PVL) is a Staphylococcus aureus toxin associated with skin and soft-tissue infections (SSTIs) and life-threatening necrotizing pneumonia in humans. Recent reports have demonstrated that neutralizing antibody to PVL is not protective against SSTI recurrence, thus raising a controversy about the expected clinical benefits from the use of PVL as a vaccine target. To investigate the impact of pre-existing immunity to PVL on the outcome of necrotizing pneumonia, we conducted a retrospective study of 114 cases and searched for an association between the history of PVL-associated infection and outcome. Death and severity factors, such as the need for mechanical ventilation and inotrope support, were significantly less frequent in patients with prior PVL-associated infection than in those without. These findings indicate a protective role of PVL-directed immunity in severe systemic PVL-associated disease, suggesting that anti-PVL vaccine could provide strong clinical benefits in this setting.
journal_name
Vaccinejournal_title
Vaccineauthors
Rasigade JP,Sicot N,Laurent F,Lina G,Vandenesch F,Etienne Jdoi
10.1016/j.vaccine.2011.04.033subject
Has Abstractpub_date
2011-06-06 00:00:00pages
4185-6issue
25eissn
0264-410Xissn
1873-2518pii
S0264-410X(11)00568-8journal_volume
29pub_type
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