Don´t know what test i have to use

Hello,
I?m starting with my PhD and I have to stop because i got a little  
knowledge
in R and statistics.
I?ve got a model of this kind:
binary response variable: prevalence of infection (0/1)
3 categorical independent variables: sex, month and name of the area

I was trying with a full model like this, before the simplification

model<-aov(prevalencia~sex*month*area)

but the Fligner test told that i haven?t got homoscedascity, so I  
suppose I
should trying with glm, with a model

model2<-glm(prevalencia~edad*sexo*mes*zona,binomial)

is that correct? where I must put the link (logit) ?
Why not read the help page regarding binomial that is on the help page  
for glm. There you will learn what the default link is for binomial.
David

>
> Thnks very much
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David Winsemius, MD
West Hartford, CT

Don´t know what test i have to use

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