METHODS FOR DIAGNOSING INFECTIOUS DISEASES USING ADSORPTION MEDIA
First Claim
1. An in vitro method for concentrating infectious pathogens present in a biological sample obtained from a subject who is suspected of being infected with said pathogens, the method comprising:
- (a) contacting the biological sample obtained from the subject with an adsorption media under conditions to form an adhering complex comprising the adsorption media and said pathogens;
(b) separating the adhering complex from components of the sample that are not included in the complex while maintaining the complex;
(c) washing the adhering complex with a wash buffer; and
(d) collecting pathogens of the adhering complex by applying an elution buffer to the complex, thereby concentrating the infectious pathogens in an eluent.
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Accused Products
Abstract
The present invention provides an in vitro method for concentrating infectious pathogens found in a biological sample obtained from an individual who is suspected of being infected with the pathogens. Provided herein is also an in vitro method for reducing or eliminating blood cells from a sample obtained from an individual suspected to being infected with an infectious pathogen. The present invention also provides a method for diagnosing malaria and a method for determining if an individual is infected with a pathogen. Provided herein is also a concentrator and a kit for use with the methods.
18 Citations
59 Claims
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1. An in vitro method for concentrating infectious pathogens present in a biological sample obtained from a subject who is suspected of being infected with said pathogens, the method comprising:
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(a) contacting the biological sample obtained from the subject with an adsorption media under conditions to form an adhering complex comprising the adsorption media and said pathogens; (b) separating the adhering complex from components of the sample that are not included in the complex while maintaining the complex; (c) washing the adhering complex with a wash buffer; and (d) collecting pathogens of the adhering complex by applying an elution buffer to the complex, thereby concentrating the infectious pathogens in an eluent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An in vitro method for reducing blood cells from a biological sample obtained from a subject who is suspected of being infected with an infectious pathogen, the method comprising:
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(a) contacting the biological sample obtained from the subject with an adsorption media under conditions to form an adhering complex comprising the adsorption media and a pathogen present in the sample; and (b) separating the blood cells of the sample and the adhering complex while maintaining the adhering complex, thereby reducing blood cells of the sample.
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18-31. -31. (canceled)
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32. An in vitro method for diagnosing malaria in a subject who is suspected of being infected with Plasmodium, the method comprising:
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(a) contacting a sample obtained from said subject with an adsorption media under conditions to form an adhering complex comprising the adsorption media and a cell present in the sample which is infected with Plasmodium;
(b) determining the presence of the adhering complex by detecting a physical change to the adsorption media; and (c) predicting that the subject has malaria based on the physical change to the adsorption media compared to a reference adsorption media that has been contacted with a control sample.
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33-44. -44. (canceled)
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45. An in vitro method for determining that a subject is infected with an infectious pathogen, the method comprising:
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(a) contacting a whole blood sample obtained from said subject with an adsorption media to form an adhering complex comprising the adsorption media and a pathogen present in the sample; and (b) determining presence of the adhering complex by detecting a physical change to the adsorption media; and (c) predicting that the subject is infected by the infectious pathogen based on the physical change to the adsorption media compared to a reference adsorption media that has been contacted with a control sample.
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46-55. -55. (canceled)
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56. A kit, the kit comprising:
a concentrator; and
packaging for before and after use.
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57. (canceled)
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58. An in vitro method for detecting an infectious pathogen present in a biological sample obtained from a subject who is suspected of being infected with said pathogen, the method comprising:
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(a) contacting the biological sample obtained from the subject with an adsorption media under conditions to form an adhering complex comprising the adsorption media and said pathogen; (b) separating the adhering complex from components of the biological sample that are not included in the complex while maintaining the complex; and (c) collecting the pathogen of the adhering complex, wherein the pathogen or a component of the pathogen is collected after using an enzymatic digestion while the pathogen is resident on the adsorption media.
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59-74. -74. (canceled)
Specification