Intended for healthcare professionals

Practice Observed

Duration of effectiveness of pertussis vaccine: evidence from a 10 year community study

Br Med J (Clin Res Ed) 1988; 296 doi: https://doi.org/10.1136/bmj.296.6622.612 (Published 27 February 1988) Cite this as: Br Med J (Clin Res Ed) 1988;296:612

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: January 2009 to February 2020

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AbstractFullPdf
Jan 2009100
Feb 20094000
Mar 20094004
Apr 20092102
May 20091203
Jun 20092604
Jul 20091600
Aug 20091401
Sep 20092301
Oct 20092600
Nov 20092402
Dec 20091305
Jan 2010900
Feb 2010903
Mar 20102505
Apr 20102001
May 20102802
Jun 20101903
Jul 20104604
Aug 20101903
Sep 20103522
Oct 20105913
Nov 20103801
Dec 20101602
Jan 201131011
Feb 20112104
Mar 20112606
Apr 20111505
May 20111809
Jun 20111702
Jul 20111604
Aug 2011905
Sep 20111907
Oct 20112408
Nov 20117105
Dec 20111102
Jan 20121504
Feb 20122008
Mar 20122200
Apr 20122703
May 20123803
Jun 20121700
Jul 2012800
Aug 20121102
Sep 20122003
Oct 201268010
Nov 20125105
Dec 20122303
Jan 20131602
Feb 20131000
Mar 2013700
Apr 2013601
May 20131202
Jun 20131603
Jul 2013902
Aug 2013900
Sep 2013500
Oct 2013601
Nov 2013300
Dec 2013401
Jan 2014802
Feb 20141003
Mar 20141604
Apr 20141102
May 2014801
Jun 20141100
Jul 2014304
Aug 2014706
Sep 20141300
Oct 2014501
Nov 2014502
Dec 20141000
Jan 20151301
Feb 2015143013
Mar 201550021
Apr 201574028
May 201529036
Jun 20154706
Jul 20154309
Aug 20152808
Sep 201537025
Oct 201550012
Nov 201578010
Dec 20153902
Jan 20166706
Feb 20167106
Mar 20166209
Apr 201657016
May 20165108
Jun 20163600
Jul 20163707
Aug 20163303
Sep 201647020
Oct 201666013
Nov 201670012
Dec 20163303
Jan 20173501
Feb 20173702
Mar 201771012
Apr 201779011
May 201770010
Jun 201750020
Jul 20175207
Aug 20174105
Sep 20176803
Oct 20177406
Nov 2017103016
Dec 20177001
Jan 20185906
Feb 20185306
Mar 20185604
Apr 20185006
May 20185102
Jun 20183001
Jul 20183003
Aug 20182403
Sep 20183402
Oct 20183701
Nov 20184707
Dec 20185407
Jan 20193800
Feb 20195707
Mar 201964013
Apr 20196108
May 20195008
Jun 201952018
Jul 201950012
Aug 201958043
Sep 201963068
Oct 201932069
Nov 20193309
Dec 20192504
Jan 20202903
Feb 20201505
Total45503880