80% of the people in the Philippines have Tuberculosis which is a very serious illness spread by coughing. You will catch this. I did. You will then need 6 months of medicines and you will never be guaranteed to be cured. You can relapse later in life.
Incidence of Tuberculosis in Philippines is 322 per 100,000 or 0.3% according to the World Bank.
http://data.worldbank.org/indicator/SH.TBS.INCD?name_desc=trueAnd healthy people usually don't get tuberculosis from coughing. If that was the case, then the American authorities might have put up a health warning on the travel advisories.