False-colour transmission electron micrograph of a colony of Neisseria gonorrhoeae,the bacterium which causes the sexually-transmitted disease gonorrhoea. The bacteria are Gram-negative,non- motile & kidney- shaped & often occur in pairs,being flattened on the side facing the partner. Infection occurs through the genital mucous membranes of either sex: symptoms include pain on passing urine & a discharge of pus from the penis or vagina. Some women may experience no initial symptmoms. Untreated,the infection spreads & may cause sterility in women & urethral blockage in men. Magnification: x7500 at 6x4.5cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Moredun Animal Health |
Taille de l’image : | 3919 px × 4948 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |