<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-11-05</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000767673</issuerCik><issuerName>SEROLOGICALS CORP</issuerName>        <issuerTradingSymbol>SERO</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001193603</rptOwnerCik><rptOwnerName>CHRISTOFFERSEN RALPH E</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>5655 SPALDING DRIVE</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>NORCROSS</rptOwnerCity><rptOwnerState>GA</rptOwnerState><rptOwnerZipCode>30092</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock, $0.01 par value</value></securityTitle><transactionDate><value>2003-11-05</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>116.1000</value></transactionShares><transactionPricePerShare><value>12.9196</value><footnoteId id="F1" /></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>4244.8600</value><footnoteId id="F2" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Stock, $0.01 par value</value></securityTitle><transactionDate><value>2003-11-06</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>113.6200</value></transactionShares><transactionPricePerShare><value>13.2018</value><footnoteId id="F1" /></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>4358.4800</value><footnoteId id="F3" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">The price is determined based on 85% of the daily average of the high and low sales price of Serologicals' Common Stock over the ten trading days preceeding the date of a meeting.   </footnote><footnote id="F2">Includes 4,244.86 rights to shares of Common Stock earned as a result of deferring fees earned while serving as a Director of the Company.  The shares are issuable upon the last day of service as a Director of the Company.</footnote><footnote id="F3">Includes 4,358.48 rights to shares of Common Stock earned as a result of deferring fees earned while serving as a Director of the Company.  The shares are issuable upon the last day of service as a Director of the Company.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Craig Brown, Attorney in Fact for Ralph E. Christoffersen</signatureName><signatureDate>2003-11-06</signatureDate></ownerSignature></ownershipDocument>

