**Exhibit 31.3**

I, Gioacchino De Chirico, certify that:

1.     I have reviewed this annual report on Form 10-K/A of Immucor, Inc.;

2.               Based on myknowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to makethe statements made, in light of the circumstances under which such statements were made, not misleading with respect to the periodcovered by this report;

3.               Based on my knowledge, the financial statements, and other financialinformation included in this report, fairly present in all material respectsthe financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in thisreport;

4.               The registrant’sother certifying officer(s) and I are responsible for establishing andmaintaining disclosure controls andprocedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) andinternal control over financial reporting (as defined in Exchange Act Rules13a-15(f) and 15d-15(f) for the registrantand have:

a)              Designed such disclosurecontrols and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that materialinformation relating to the registrant,including its consolidated subsidiaries, is made known to us by others withinthose entities, particularly during the period in which thisreport is being prepared;

b)             Designed such internal control over financial reporting, or caused suchinternal control over financial reporting to be designed under our supervision,to provide reasonable assurance regarding the reliability of financialreporting and the preparation of financial statements for external purposes inaccordance with generally accepted accounting principles;

c)              Evaluated the effectiveness of the registrant’s disclosure controls andprocedures and presented in this report ourconclusions about the effectiveness of the disclosure controls and procedures,as of the end of the period covered by this report based onsuch evaluation; and

d)             Disclosed in this report any change in theregistrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’sfourth fiscal quarter in the case of anannual report) that has materially affected, or is reasonably likely tomaterially affect, the registrant’s internal controlover financial reporting; and

5.               The registrant’s other certifying officer(s) and I have disclosed, based onour most recent evaluation of internal controlover financial reporting, to the registrant’s auditors and the audit committeeof the registrant’s board of directors (orpersons performing the equivalent functions):

a)              All significant deficiencies and material weaknesses in the design oroperation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’sability to record, process, summarize and reportfinancial information; and

b)             Any fraud, whether or not material, that involvesmanagement or other employees who have a significant role in the registrant’s internal control over financialreporting.
| Date: December 6, 2006                                                |
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|                                                                  |
|   /s/  Gioacchino De Chirico                                |   |
| Gioacchino De Chirico,                                                |
| President and  Chief Executive Officer (Principal  Executive Officer) |

 

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