Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.

Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.

Influenza virus, Michigan strain. 3D illustration showing surface glycoprotein spikes hemagglutinin green and neuraminidase blue

Influenza virus, Michigan strain. 3D illustration showing surface glycoprotein spikes hemagglutinin green and neuraminidase blue

Flu viruses and rain, 3D illustration. Conceptual image showing increase in influenza disease caused by flu viruses in cold rainy season

Flu viruses and rain, 3D illustration. Conceptual image showing increase in influenza disease caused by flu viruses in cold rainy season

Flu viruses and rain, 3D illustration. Conceptual image showing increase in influenza disease caused by flu viruses in cold rainy season

Fatty liver conceptual image, 3D illustration showing fatty liver silhouette made from micrograph of liver steatosis

Obese man with fatty liver on background with micrograph of liver steatosis, 3D illustration. Conceptual image for non-alcoholic fatty liver disease

Obese man with fatty liver, 3D illustration. Conceptual image for non-alcoholic fatty liver disease

Neisseria gonorhoeae, Gram-negative bacteria which cause sexually transmitted infection gonorrhea, 3D illustration

Neisseria gonorhoeae, Gram-negative bacteria which cause sexually transmitted infection gonorrhea, 3D illustration

Neisseria gonorhoeae, Gram-negative bacteria which cause sexually transmitted infection gonorrhea, 3D illustration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Parkinson's disease. 3D illustration showing neurons containing Lewy bodies small red spheres which are deposits of proteins accumulated in brain cells that cause their progressive degeneration

Fungi Penicillium which cause food spoilage and are used for production of the first antibiotic penicillin. 3D illustration showing spores conidia and conidiophore