Diseases, Conditions, Syndromes

Iceland tightens COVID rules as cases surge

Iceland on Friday said it would tighten its COVID rules as it battles a rise in new cases, including capping gatherings and mandating masks in crowded areas.

Diseases, Conditions, Syndromes

Dialysis patients benefit from a third COVID vaccination dose

Just like diseases, vaccines cause the body to form an immunological memory. This memory can prevent a second infection or illness caused by the same pathogen. "Put simply, specific immunity is based on antibodies that prevent ...

Vaccination

Pfizer says COVID booster shot 95.6% effective

A booster shot of the anti-COVID-19 vaccine developed by Pfizer/BioNTech is 95.6 percent effective against symptomatic infection, according to trial data published by the makers on Thursday.

Diseases, Conditions, Syndromes

Portugal hails Covid jab 'success' with 85% vaccinated

Portugal has reached its goal of vaccinating 85 percent of its population against COVID-19 and will administer a third booster dose to people 65 years of age and over, health authorities said on Friday.

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