Vaccination

Chile to give fourth COVID-19 vaccine dose

Chile will offer its citizens a fourth coronavirus vaccine dose from February, starting with high-risk categories, President Sebastian Pinera has announced.

Vaccination

AstraZeneca says booster jab effective against Omicron

British pharmaceutical giant AstraZeneca said Thursday that a third, or "booster", dose of its COVID-19 vaccine Vaxzevria "significantly" lifted antibody levels against the Omicron strain in a laboratory study.

Vaccination

Parents more likely to refuse COVID jab for children than adults

In a study of South Australian households, researchers at the University of Adelaide have found parents are more likely to refuse COVID-19 vaccination for their child than the proportion of adults refusing vaccination for ...

Immunology

COVID-19 vaccination: Reasons for earlier boosters

Patients with rheumatic diseases or inflammatory diseases of the intestine (Crohn's disease, ulcerative colitis) and skin (psoriasis) are often treated with medicinal substances that suppress the immune system. These immunosuppressive ...

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