Sentence Examples


  • It usually is caused by the immune system's response to the body's contact with a foreign substance, such as an allergen or pathogen.
  • It usually is caused by the immune system's response to the body's contact with a foreign substance, such as an allergen or pathogen.
  • It usually is caused by the immune system's response to the body's contact with a foreign substance, such as an allergen or pathogen.
  • It usually is caused by the immune system's response to the body's contact with a foreign substance, such as an allergen or pathogen.
  • It usually is caused by the immune system's response to the body's contact with a foreign substance, such as an allergen or pathogen.