Does mold affect everyone the same way?

Some people are genetically predisposed to developing a mold reaction, while others may develop a reaction after being “sensitized to a particular mold species over a period of time. Most people have no reaction to even elevated mold spore levels. The most susceptible people are are infants with under developed immune systems, elderly with weakened immune systems, AIDS and cancer patients, and anyone whose immune system has been compromised by respiratory infections such as pneumonia, bronchitis, and asthma. Immonusuppression can also result from medications, chemotherapy, alcoholism, and short duration illnesses such as influenza.