<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   04/22/03  TZ    -->
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-07-22</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000736822</issuerCik>
        <issuerName>IMMUCOR INC</issuerName>
        <issuerTradingSymbol>BLUD</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
      <reportingOwnerId>
            <rptOwnerCik>0001024158</rptOwnerCik>
            <rptOwnerName>MCKEITHAN DANIEL T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>1</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
       </reportingOwnerRelationship>
   </reportingOwner>
   <nonDerivativeSecurity>
      <securityTitle>
         <value>Common stock, $.10 par value</value>
      </securityTitle>
      <transactionDate>
         <value>2003-07-22</value>
      </transactionDate>
      <deemedExecutionDate>
         <value>2003-07-22</value>
      </deemedExecutionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>M</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>7500</value>
         </transactionShares>
         <transactionValue>
           <value>61875</value>
         </transactionValue>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
     <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>54666</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeSecurity>
   <derivativeSecurity>
      <securityTitle>
         <value>Stock option, right to buy</value>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>8.25</value>
      </conversionOrExercisePrice>
      <transactionDate>
         <value>2003-07-22</value>
      </transactionDate>
      <deemedExecutionDate>
         <value>2003-07-22</value>
      </deemedExecutionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>M</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>7500</value>
         </transactionShares>
         <transactionValue>
           <value>61875</value>
         </transactionValue>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
         <value>2001-06-17</value>
      </exerciseDate>
      <expirationDate>
         <value>2009-06-17</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common stock, $.10 par value</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>7500</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>15000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeSecurity>
   <ownerSignature>
      <signatureName>/s/ Daniel McKeithan, by Steven C. Ramsey as Power of Attorney</signatureName>
      <signatureDate>2003-07-23</signatureDate>
   </ownerSignature>
</ownershipDocument>
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X0101
4
2003-07-22
0
0000736822
IMMUCOR INC
BLUD
0001024158
MCKEITHAN DANIEL T
1
0
0
0
Common stock, $.10 par value
2003-07-22
2003-07-22
4
M
0
7500
61875
A
54666
D
Stock option, right to buy
8.25
2003-07-22
2003-07-22
4
M
0
7500
61875
D
2001-06-17
2009-06-17
Common stock, $.10 par value
7500
15000
D
/s/ Daniel McKeithan, by Steven C. Ramsey as Power of Attorney
2003-07-23