Novel Method for Detection of β-Lactamases by Using a Chromogenic Cephalosporin Substrate

Cynthia H. O'Callaghan; A. Morris; Susan M. Kirby; A. H. Shingler

doi:10.1128/AAC.1.4.283

DOI: 10.1128/AAC.1.4.283

Article Information

DOI

https://doi.org/10.1128/AAC.1.4.283

PubMed

4208895

Published By

American Society for Microbiology Journals

History

Published online April 1, 1972.

Author Information

Cynthia H. O'Callaghan,
A. Morris,
Susan M. Kirby and
A. H. Shingler

Glaxo Research Ltd., Greenford, Middlesex, England

Article usage

Article usage: March 2006 to December 2019

Rendering graph...

	Abstract	Full	Pdf
Mar 2006	0	0	1
Apr 2006	10	0	3
May 2006	24	0	6
Jun 2006	28	0	10
Jul 2006	29	0	21
Aug 2006	27	0	24
Sep 2006	38	0	23
Oct 2006	33	0	47
Nov 2006	31	0	46
Dec 2006	18	0	15
Jan 2007	23	0	20
Feb 2007	19	0	9
Mar 2007	41	0	27
Apr 2007	37	0	21
May 2007	30	0	25
Jun 2007	15	0	16
Jul 2007	33	0	19
Aug 2007	35	0	14
Sep 2007	32	0	28
Oct 2007	53	0	31
Nov 2007	32	0	22
Dec 2007	19	0	14
Jan 2008	13	0	11
Feb 2008	9	0	17
Mar 2008	21	0	21
Apr 2008	12	0	14
May 2008	30	0	16
Jun 2008	23	0	22
Jul 2008	21	0	16
Aug 2008	35	0	21
Sep 2008	45	0	21
Oct 2008	52	0	17
Nov 2008	67	0	27
Dec 2008	35	0	19
Jan 2009	58	0	48
Feb 2009	42	0	15
Mar 2009	50	0	27
Apr 2009	29	0	23
May 2009	41	0	20
Jun 2009	53	0	33
Jul 2009	38	0	30
Aug 2009	32	0	18
Sep 2009	38	0	17
Oct 2009	62	0	36
Nov 2009	65	0	51
Dec 2009	49	0	15
Jan 2010	59	0	20
Feb 2010	47	0	15
Mar 2010	87	0	31
Apr 2010	70	0	30
May 2010	79	0	29
Jun 2010	60	0	31
Jul 2010	71	0	32
Aug 2010	35	0	23
Sep 2010	60	0	26
Oct 2010	81	0	37
Nov 2010	74	0	18
Dec 2010	55	0	30
Jan 2011	45	0	25
Feb 2011	58	0	32
Mar 2011	64	0	42
Apr 2011	64	0	41
May 2011	61	0	36
Jun 2011	39	0	31
Jul 2011	71	0	42
Aug 2011	47	0	23
Sep 2011	62	0	30
Oct 2011	89	0	49
Nov 2011	73	0	22
Dec 2011	33	0	11
Jan 2012	34	0	19
Feb 2012	32	1	23
Mar 2012	49	0	37
Apr 2012	34	0	23
May 2012	53	0	29
Jun 2012	33	0	19
Jul 2012	40	0	22
Aug 2012	56	1	26
Sep 2012	37	0	14
Oct 2012	33	0	21
Nov 2012	34	0	21
Dec 2012	41	0	15
Jan 2013	33	0	18
Feb 2013	32	0	24
Mar 2013	56	0	23
Apr 2013	43	0	23
May 2013	70	1	32
Jun 2013	31	0	44
Jul 2013	45	0	36
Aug 2013	45	0	25
Sep 2013	72	0	43
Oct 2013	40	0	50
Nov 2013	69	0	60
Dec 2013	46	0	20
Jan 2014	53	0	35
Feb 2014	39	0	18
Mar 2014	67	1	64
Apr 2014	64	0	36
May 2014	59	0	41
Jun 2014	35	0	37
Jul 2014	44	0	29
Aug 2014	29	0	37
Sep 2014	37	1	43
Oct 2014	45	0	30
Nov 2014	43	0	23
Dec 2014	56	0	19
Jan 2015	44	1	23
Feb 2015	40	1	31
Mar 2015	52	0	36
Apr 2015	49	1	24
May 2015	67	0	18
Jun 2015	59	0	40
Jul 2015	39	0	33
Aug 2015	46	2	33
Sep 2015	38	0	46
Oct 2015	64	2	42
Nov 2015	63	0	38
Dec 2015	64	1	33
Jan 2016	69	0	24
Feb 2016	72	0	35
Mar 2016	140	0	45
Apr 2016	81	0	59
May 2016	62	0	30
Jun 2016	65	0	74
Jul 2016	31	1	30
Aug 2016	55	0	24
Sep 2016	39	1	19
Oct 2016	84	1	41
Nov 2016	53	0	25
Dec 2016	35	7	24
Jan 2017	48	0	49
Feb 2017	51	0	23
Mar 2017	63	0	12
Apr 2017	49	0	4
May 2017	37	3	201
Jun 2017	20	0	43
Jul 2017	39	0	68
Aug 2017	23	1	15
Sep 2017	43	0	27
Oct 2017	44	0	24
Nov 2017	65	0	29
Dec 2017	37	0	33
Jan 2018	54	0	28
Feb 2018	50	0	28
Mar 2018	63	2	23
Apr 2018	34	1	29
May 2018	39	0	31
Jun 2018	34	1	25
Jul 2018	29	0	35
Aug 2018	39	0	27
Sep 2018	44	0	31
Oct 2018	63	0	31
Nov 2018	67	0	27
Dec 2018	48	0	40
Jan 2019	37	0	32
Feb 2019	49	0	48
Mar 2019	57	0	42
Apr 2019	58	0	61
May 2019	40	0	37
Jun 2019	36	0	35
Jul 2019	45	0	47
Aug 2019	37	0	37
Sep 2019	38	0	28
Oct 2019	51	0	41
Nov 2019	46	0	37
Dec 2019	5	0	1