| 摘要 |
PCT No. PCT/GB93/00110 Sec. 371 Date Jul. 15, 1994 Sec. 102(e) Date Jul. 15, 1994 PCT Filed Jan. 18, 1993 PCT Pub. No. WO93/14209 PCT Pub. Date Jul. 22, 1993The present invention provides a vaccine to treat or prevent mastitis in a bovine species, comprising an immunologically effective amount of a plasminogen-activating streptokinase protein produced by Streptococcus uberis. The present invention further provides a method of treating or preventing mastitis in a bovine species comprising vaccinating a cow with an immunologically effective amount of a plasminogen-activating streptokinase protein produced by S. uberis. The present invention further provides an isolated plasminogen-activating streptokinase protein produced by S. uberis, or an immunogenic fragment thereof.
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