16.5 MB (16.0 MB compressed)
2400 x 2397 pixels
20.3 x 20.3 cm ⏐ 8.0 x 8.0 in (300dpi)
CDC / CYNTHIA GOLDSMITH, JAMES A. COMER, AND BARBARA JOHNSON / SCIENCE PHOTO LIBRARY CDC / CYNTHIA GOLDSMITH, JAMES A. COMER, AND BARBARA JOHNSON / SCIENCE PHOTO LIBRARY
Coloured transmission electron micrograph (TEM) of chikungunya viruses particles. This alphavirus is composed of an RNA (ribonucleic acid) genome (dark brown) enclosed in a protein coat, or nucleocapsid, which is itself surrounded by a lipoprotein envelope. The virus, which is transmitted by mosquitoes, causes a rare form of viral fever. Symptoms include a high fever, rash and arthritic joint pain. There is no vaccine or treatment for the disease, which although often severe is rarely fatal. Magnification: x 98,000 when printed at 10 centimetres wide.
Model release not required. Property release not required.