Vaginal infection

[Alhabib]

Vaginal yeast infections are caused by the fungus candida albicians, which is one of a community of microorganisms that are always present in the vagina in low concentrations.
One of the factors that can bring about a yeast infection is the initiation of the use of certain antibiotics.
Why would the use of antibiotics foster an unhealthy multiplication of C. albicans in the vagina?

[canalon]

Vaginal yeast infections are caused by the fungus candida albicians, which is one of a community of microorganisms that are always present in the vagina in low concentrations.
One of the factors that can bring about a yeast infection is the initiation of the use of certain antibiotics.
Why would the use of antibiotics foster an unhealthy multiplication of C. albicans in the vagina?

Read the bolded part, think about what this means.
Now see the word that I have italicized? What would be its effect on the community mentioned before?