<SEC-DOCUMENT>0000080255-19-000008-index.html : 20190110
<SEC-HEADER>0000080255-19-000008.hdr.sgml : 20190110
<ACCEPTANCE-DATETIME>20190110132704
ACCESSION NUMBER:		0000080255-19-000008
CONFORMED SUBMISSION TYPE:	SC 13G/A
CONFIRMING COPY:	
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190110
DATE AS OF CHANGE:		20190110

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUIDEL CORP /DE/
		CENTRAL INDEX KEY:			0000353569
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				942573850
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-35237

	BUSINESS ADDRESS:	
		STREET 1:		12544 HIGH BLUFF DRIVE
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
		BUSINESS PHONE:		8585521100

	MAIL ADDRESS:	
		STREET 1:		12544 HIGH BLUFF DRIVE
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MONOCLONAL ANTIBODIES INC /DE/
		DATE OF NAME CHANGE:	19910210

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRICE T ROWE ASSOCIATES INC /MD/
		CENTRAL INDEX KEY:			0000080255
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		IRS NUMBER:				520556948
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		100 EAST PRATT ST
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		(410)345-6603

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 89000
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21289
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>qdel13gadec18.txt
<TEXT>
Document 1 - file: qdel13gadec18.txt

</DOCUMENT>
</SEC-DOCUMENT>