onsansg,
these are the age my kids attend full-day child care;
#1 - 20mths
#2 - 18mths
#3 - 19mths
YES, they may get sick easily for 3-6 months,
then they'll be stronger in immune system by the time they are 3.
If a kiddo were to attend a child care at 3 or beyond,
where the other kiddos there are already strong in their immune systems,
most properly the whole class won't get the regular cold, cough, runny nose,
but when a strong virus attack, the weaker ones will be hit hard.
Since you are not working now,
why not send her to half-day childcare,
let her get in touch with little virus.
At least at this time you are still at home to look after her when she's ill,
by year end, she'll be stronger,
and you can have a better chance of returning to work without needing to take lots of childcare leaves.
Just my 2 cents.