Exhibit 10.19




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AMENDMENT
    OF SOLICITATION/MODIFICATION OF CONTRACT
    CONTINUATION PAGE
 Contract
    No. N01-HB-87144
    Modification No. 25

Page 2 of 2 Pages   1. ARTICLE B.2.
    ESTIMATED COST AND FIXED FEE, is
    revised to read as follows:
  a.
    The estimated cost of this contract is increased by $3,013,594
    from $14,921,589 to $17,935,183.  b.
    The fixed fee for this contract is increased by $195,884 from
    $867,979 to $1,063,863. The fixed fee shall be paid in
    installments based on the percentage of completion of work, as
    determined by the Contracting Officer, and subject to the
    witholding provisions of the clauses ALLOWABLE COST AND
    PAYMENT and FIXED FEE referenced in the General
    Clause Listing in Part II, ARTICLE 1.1. of this
    contract. Payment of fixed fee shall not be made in less than
    monthly increments.  c.
    The Governments obligation, represented by the sum of the
    estimated cost plus fixed fee is increased by $3,209,478 from
    $15,789,568 to $18,999,046.  d.
    Total funds currently available for payment and allotted to this
    contract are increased by $2,191,000 from $15,789,568 to
    $17,980,568 of which $16,978,866 represents the estimated costs,
    and of which $1,001,702 represents the fixed fee. For further
    provisions on funding, see the LIMITATION OF FUNDS clause
    referenced in Part II, ARTICLE 1.2. Authorized
    Substitutions of Clauses.  e.
    It is estimated that the amount currently allotted will cover
    performance of the contract through October 31,2010.  f.
    The Contracting Officer may allot additional funds to the
    contract without the concurrence of the Contractor.  g.
    Future increments to be allotted to this contract are estimated
    as follows:  Performance Period

Amount11/01/2010-04/30/2011

$1,018,478   2. SECTION J.
    LIST OF
    ATTACHMENTS  Attachment 3.,
    Financial Report of Individual Project/Contract, NIH2706,
    Page 1 is deleted in its entirety and the attached
    Page 1 is substituted thereof.




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National Institutes of HealthFinancial Report of IndividualProject/Contract






Project Task:Complete this form in accordance with






Maintenance of NHLBI Biological



Contract No:







0990-0134accompanying Instructions






Specimen Repository



N01-HB-87144



Date of Report:



0990-0131Contractor Name and Address:SeraCare Life Sciences, Inc.DBA SeraCare BioServices217 Perry ParkwayGaithersburg, Maryland 20877Reporting Period:CumulativePercentage of







IncurredExpenditure Category


Effort/Hours







Cost at



Incurred



Cumulative



Estimated



Estimated



FundedEnd of



Cost-Current



Cost to Date



Cost to



Cost at



ContractPrior



Period



(D + E)



Complete



Completion



Amount



VarianceFunded



Actual



Period















(F + G)



Through



(Over orOctober 31,



Under)2010



(I-H)A


B



C



D



E



F



G



H



I



JPrincipal InvestigatorLaboratory StaffData EntryTotal Direct Labor





































$
4,453,149Materials & Supplies





































$
1,339,723Other Direct Costs





































$
721,919Travel





































$
13,059Freezers/Freezer Equipment





































$
1,290,050Information Management Systems Subcontract





































$
808,592Subcontract-2





































$
1,000Contract Generated Revenue





































$
(14,000
)Subtotal





































$
8,613,493Overhead@





































$
6,890,413G&A@





































$
1,474,960Total Costs Excluding Fixed Fee






































16,978,866Fixed Fee





































$
1,001,702Total Cost Plus Fixed Fae





































$
17,980,568