First, generally, no vaccines are required to travel anywhere. Some may be recommended, and if there's currently an outbreak in a country, then governments might deny access to the unvaccinated.
This is from the American Centers for Disease Control. Remember, they want to push vaccines. They "recommend" a lot, but nothing is required. http://wwwn.cdc.gov/travel/destinationPhilippines.aspx
Polio is not listed as a risk in the Philipines.
Most so-called vaccine preventable diseases occur from close contact with someone with the disease or by drinking contaminated water.
You can only get tetanus by getting a deep puncture wound that doesn't bleed, or that isn't cleaned properly, and that wound needs to be inflicted by something currently buried in dirt or feces. It's really hard to get tetanus, especially as an infant. Tetanus is a disease of senior citizens.
If you want more disease-specific info, let me know and I'll point you to some links.