Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
aerosols anatomy and antibody asian biology bird bronchitis cell chills clinic cold common coughing diagram discomfort disease envelope epidemic fatigue fever flu general grippe h1n1 headache health healthcare hemagglutinin human illness illustration immune immunology infection infectious influenza macro medical medicine microbe microbiology model muscle neuraminidase nose pains pandemic pneumonia polymerase proteins reaction response ribonuclear rna runny science shape sore spanish spike structure surface swine system throat vaccination vaccine viral virion virus weakness