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Diagram showing different kinds of viruses illustration
Vector illustration design concept of National Influenza Vaccination Week observed on December
Hand punched fight attack to coronavirus,concept of fighting corona Virus or covid 19,exercise, health care, social distancing, innovations, vaccine and drug development, medicine and research.
Safe vaccination for old people. Elder man in medical getting flu or Covid-19 vaccine sitting on sofa at home. Asian Doctor or nurse giving flu or Covid-19 shot to senior.
Virus or bacteria background

Free stock photosinfluenza (4)