Definition: Preexisting immunity refers to the immunity (the ability of the body to resist an infection) that a person or an organism already possesses before being exposed to a specific pathogen. This immunity can be acquired through previous infections, vaccinations, or maternal antibodies passed during pregnancy.
Frequency of Use: The term is often used in medical and scientific contexts, particularly in discussions on infectious diseases, immunology, and vaccinations. It is more common in written contexts such as medical journals, articles, and textbooks than in everyday verbal communication.
Example Sentences: 1. "The researchers were keen to study how preexisting immunity affected the severity of the disease." - Los investigadores estaban interesados en estudiar cómo la inmunidad preexistente afectaba la gravedad de la enfermedad.
La eficacia de la vacuna puede verse influenciada por el nivel de inmunidad preexistente en la población.
"Individuals with preexisting immunity may have a lower risk of reinfection."
While "preexisting immunity" is not commonly found in idiomatic expressions, understanding the broader concept of immunity can lead to several phrases that relate to health and resistance. Here are some examples:
En el contexto de la salud pública, una comunidad con altas tasas de vacunación construye una forma de inmunidad colectiva, reduciendo significativamente el riesgo de brotes.
"It's often said that knowledge is immunity against ignorance."
Se suele decir que el conocimiento es una inmunidad contra la ignorancia.
"Investing in education provides a form of immunity against future economic downturns."
Invertir en educación proporciona una forma de inmunidad contra futuras recesiones económicas.
"When faced with criticism, having a strong support system acts like immunity against negative feedback."
The term "preexisting" is comprised of the prefix "pre-" meaning 'before' and "existing," which comes from the Latin word "existere," meaning 'to stand out' or 'to be present.' The word "immunity" originates from the Latin "immunitas," meaning 'exemption,' which refers to the state of being free from a disease or obligation.
Synonyms: - Innate immunity - Natural immunity - Existing immunity
Antonyms: - Acquired immunity - Temporary immunity - Vaccine-induced immunity
In conclusion, "preexisting immunity" is an important concept in the fields of immunology and public health, indicating a protective state against infections that individuals may already possess prior to exposure to specific pathogens.