Mechanism of paralytic polio disease, conceptual computer illustration. Polio viruses affecting motor neurons of anterior horn of spinal cord. The death of the neurons (nerve cells) causes weakness in the muscles that they serve and can lead to paralysis. Cases have fallen by 99 percent since 1988 thanks to global efforts to eradicate the disease. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Kon, Kateryna |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |