Method of treating and preventing infectious diseases
First Claim
1. A method for reducing levels of a lipid-containing infectious organism in a fluid comprising:
- contacting the fluid containing the lipid-containing infectious organism with a first organic solvent capable of extracting lipid from the lipid-containing infectious organism;
mixing the fluid and the first solvent;
permitting organic and aqueous phases to separate; and
collecting the aqueous phase containing the infectious organism with reduced lipid content.
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Abstract
The present invention relates to a method for reducing the occurrence and severity of infectious diseases, especially infectious diseases in which lipid-containing infectious organisms are found in biological fluids, such as blood. The present invention employs solvents useful for extracting lipids from the lipid-containing infectious organism, thereby reducing the infectivity of the infectious organism. The present invention also provides a vaccine composition, comprising a lipid-containing infectious organism, treated with solvents to reduce the lipid content of the infectious organism, combined with a pharmaceutically acceptable carrier. The vaccine composition is administered to an animal or a human to provide protection against the lipid-containing infectious organism.
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Citations
24 Claims
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1. A method for reducing levels of a lipid-containing infectious organism in a fluid comprising:
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contacting the fluid containing the lipid-containing infectious organism with a first organic solvent capable of extracting lipid from the lipid-containing infectious organism;
mixing the fluid and the first solvent;
permitting organic and aqueous phases to separate; and
collecting the aqueous phase containing the infectious organism with reduced lipid content. - View Dependent Claims (2, 12, 13, 14, 15, 16, 17, 18)
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3. A method for reducing levels of a lipid-containing infectious organism in an animal or a human comprising:
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obtaining a fluid containing the lipid-containing infectious organism from the animal or the human;
contacting the fluid containing the lipid-containing infectious organism with a first organic solvent capable of extracting lipid from the lipid-containing infectious organism;
mixing the fluid and the first organic solvent;
permitting organic and aqueous phases to separate;
collecting the aqueous phase containing the infectious organism with reduced lipid content; and
introducing the aqueous phase containing the infectious organism with reduced lipid content into the animal or the human. - View Dependent Claims (4)
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5. A method for reducing levels of a lipid-containing infectious organism in animal or human plasma comprising:
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removing blood containing the lipid-containing infectious organism from the animal or the human;
obtaining plasma from the blood, the plasma containing the lipid-containing infectious organism;
contacting the plasma containing the lipid-containing infectious organism with a first organic solvent capable of extracting lipid from the lipid-containing infectious organism;
mixing the plasma and the first organic solvent;
permitting organic and aqueous phases to separate;
collecting the aqueous phase containing the infectious organism with reduced lipid content; and
introducing the aqueous phase containing the infectious organism with reduced lipid content into the animal or the human. - View Dependent Claims (6, 7)
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8. A method for making a vaccine comprising:
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contacting a lipid-containing infectious organism in a fluid with a first organic solvent capable of extracting lipid from the lipid- containing infectious organism;
mixing the fluid and the first organic solvent for a time sufficient to extract lipid from the lipid-containing infectious organism;
permitting organic and aqueous phases to separate; and
collecting the aqueous phase containing the infectious organism with reduced lipid content. - View Dependent Claims (9, 10, 11, 19)
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- 20. A vaccine composition, comprising a substantially delipidated infectious organism and a pharmaceutically acceptable carrier.
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24-28. -28. (canceled)
Specification