LOUISE HUGHES / SCIENCE PHOTO LIBRARY LOUISE HUGHES / SCIENCE PHOTO LIBRARY
Herpes simplex virus core protein, molecular model. The core protein is usually surrounded by a lipid enveloped which fuses with cell membranes, permitting entry of the virus into the cell. The virus causes herpes and comes in two forms, type-1 and type 2 and is categorised based on where the infection occurs, for example, oral or genital herpes.
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