Novel vaccines for use in the prevention and treatment of H. somnus infections are disclosed. The vaccines contain epitopes from LppA, LppB, LppC or combinations thereof. Also disclosed are the nucleotide sequences encoding these lipoproteins, vectors including these sequences, and host cells transformed with these vectors.

 
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< Medical sponge having mucopolysaccharide coating

< Hepatitis B surface antigen vaccine

> Molecules containing at least one peptide sequence carrying one or several epitopes characteristic of a protein produced by P. falciparum at the sporozoite stage and in the hepatocytes

> Odor control compositions comprising .beta.-ketoester pro-fragrances

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