Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Sullivan, Nadine M.; Mills, Daniel C.; Riemann, Hans P.; Arnon, Stephen S. (2011)
Publisher: Microbial Ecology in Health and Disease
Journal: Microbial Ecology in Health and Disease
Languages: English
Types: Article
Infant botulism results when Clostridium botulinum spores germinate, colonise, and produce botulinum neurotoxin in the intestine. As the normal intestinal microflora is important in resistance to C. botulinum colonisation in the mouse model of infant botulism, we investigated the effect of intestinal bacteria isolated from six healthy infants (two breastfed, two formula-fed, and two both formula and breast-fed) on the growth of 14 strains of C. botulinum (three Type A, four Type B, three Type E, two Type F, and two Type G) using zone inhibition procedures. We tested 88 anaerobic and 64 aerobic and facultative isolates. Strains of bifidobacteria, lactobacilli, propionibacteria and enterococci inhibited the growth of C. botulinum, as did several strains of the Bacteroides fragilis group. The only clostridium inhibiting C. botulinum growth was C. ramosum, which inhibited both of the Type G strains and one of the two Type F strains. At least two bacterial isolates from each faecal sample inhibited most of the 14 C. botulinum strains. Co-culture experiments with intact faecal samples and C. botulinum spores or vegetative cells indicated that the normal flora of healthy infants had a bacteriostatic, rather than a bacteriocidal, effect on the growth of C. botulinum. Thus, susceptibility to infant botulism may result in part from the absence of these inhibitory organisms from the normal flora of the infant intestine.Keywords: Infant botulism; Colonisation resistance; Bacterial antagonism; Clostridium botulinum.

Share - Bookmark

Cite this article

Collected from