reinfections

Catching it again

Reinfections are instances of becoming infected again after recovering from a previous infection, typically by the same pathogen.

The term gained wide use during the COVID-19 pandemic, when people tracked whether immunity from earlier infections protected against new variants: She had three reinfections over two years.

immunity

antibodies

Proteins targeting pathogens

resistance · T-cells · B-cells · breakthrough · immunoglobulin · cytokines · lymphocytes · immunocompromised · immunosuppression · antigen

clinical

symptoms

Indicators of disease

  • relapseReturn to former illness
  • feverElevated body temperature
  • coughExplosive airway clearing

fatigue · hospitalization · treatment · complications · pneumonia · severity · mild · moderate · recovery · convalescence

epidemiology

recurrence

Return of something previous

surveillance · incidence · prevalence · monitoring · resurgence · endemic · epidemic · pandemic · superspreader · contact-tracing

virology

variants

Differing forms of something

strain · phylogenetic · heterologous · homologous · recombination · evolution · sequencing · pathogenicity · virulence · Delta

transmission

spread

To distribute widely

outbreak · contact · carrier · vector · airborne · droplet · incubation · infectiousness · household · superspreading

Opposites
infection status

reinfectionsimmunity

Protected from harm

clearance · disease eradication · cure · recovery · remission

immune outcome

reinfectionsnatural immunity

Acquired resistance through exposure

Family

reinfection

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Negative · Rated G