My mom has pseudomonas putida infection in lungs. what are the ways a human can contract this infection?

By having bad luck..: P. Putida is a very common germ that lives in soil and freshwater environments all over the world. Many types of bacteria are in soil. Sometimes, people who work around soil can get sick from inhaling germs from soil, compost, dust thrown into the air during outdoors work, etc... Soil germs can also enter through skin wounds. Doctors can evaluate to see what antibiotics are needed for treatment.