This came up in a recent conversation. Back in 2020, at least one person was saying 6 months. I'm at an age where I can get a booster every 6 months.
At the moment, just a simple cold has made me feel very bad.
It seems to me that natural immunity would last longer with repeated exposure. Doctors and hospital workers seem to be immune for long periods of time.
Natural immunity to COVID-19 typically lasts about 3 to 6 months against reinfection, though protection drops faster against newer variants.
UCLA Health
Duration of Protection
Against reinfection: Measurable antibody levels and protection against catching a mild or moderate infection start to fade after 3 to 6 months. Newer variants can bypass natural defenses more easily.
Gavi, the Vaccine Alliance
Against severe disease: Protection against severe illness, hospitalization, and death lasts much longer—often remaining strong for 10 months or more.
National Institutes of Health (NIH) | (.gov)
Factors That Affect Immunity
Variant changes: Mutations in the virus make it easier for reinfection to happen over time.
Severity of illness: People who had a severe COVID-19 infection sometimes build higher initial antibody levels than those with mild or asymptomatic cases.
BASS Medical Group
Hybrid Immunity
Getting vaccinated after recovering from a COVID-19 infection creates hybrid immunity. This combination provides a stronger, broader, and longer-lasting defense against current and future variants than natural infection alone. Health experts often suggest waiting 3 to 4 months after a natural infection before getting a booster shot.
Variant changes: Mutations in the virus make it easier for reinfection to happen over time.
Severity of illness: People who had a severe COVID-19 infection sometimes build higher initial antibody levels than those with mild or asymptomatic cases.
BASS Medical Group
Hybrid Immunity
Getting vaccinated after recovering from a COVID-19 infection creates hybrid immunity. This combination provides a stronger, broader, and longer-lasting defense against current and future variants than natural infection alone. Health experts often suggest waiting 3 to 4 months after a natural infection before getting a booster shot.
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