Secondary Immunodeficiency

Secondary immunodeficiency occurs when the immune system's ability to fight infections is weakened due to external factors, rather than because of a genetic disorder. It can result from conditions like infections (e.g., HIV), medical treatments such as chemotherapy or steroids, malnutrition, or chronic illnesses. This suppression makes individuals more vulnerable to infections they might normally withstand. Unlike primary immunodeficiency, which is inherited, secondary immunodeficiency develops because of environmental or acquired causes, often reversible once the underlying issue is addressed.