There are two types of typhoid vaccination
in use today, a live attenuated oral vaccine
and a parenteral polysaccharide vaccine. Both forms require that immunization
be completed at least two weeks before
exposure. Polio vaccination is considered safe.
However,a woman should be advised to avoid pregnancy
within 1 month of having received one of
these vaccines because of theoretical risk of transmission to the fetus.
All the best for your IVF treatment.