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Prata transforma bactérias em zumbis

Novo estudo publicado na Nature desvenda o mecanismo de aborção da prata, revelando que o metal transforma bactérias em zumbis.

“The Black Death” usually invokes mental images of tolling church bells, doctors with beak-shaped masks, necrotic tissue, grave diggers, and the Middle Ages - but that’s far from the whole story. Meet Yersinia pestis: A Gram-negative, rod-shaped bacterium pictured here (in green) using scanning electron micrography on proventricular spines of a Xenopsylla cheopis flea (in purple). Yersinia pestis, which can infect most small mammals - cats, rats, dogs, and humans among them ...

Amazing Images: The Best Science Photos of the Week

If this fellow is in your well water, don't quench your thirst. This is a scanning electron microscope image of Giardia muris, a protozoan parasite that causes nasty diarrhea when it infects the intestines of its hosts.

Medical illustration of vancomycin-resistant Staphylococcus aureus (VRSA).

caracteristicas: Cocos Gram positivo que se disponen en cadenas largas, tiene capsula. con un tamaño de 0.6 a 1.2µm

Disease can be maintained through three levels of prevention. Primary(prevention) = no impairment ; Secondary(detection) = impairment; Tertiary (treatment)= disease with impairment.

Frozen in action, killer T cells appear remarkably alive as they attack a cancer cell. Several of the normally round T-cells acquire the elongated shape of active fighters as they subject their target to chemical attack, breaking down the cell membrane. . The Wars Within - Imgur

Bestseller Books Online Essentials of Epidemiology in Public Health, Second Edition Ann Aschengrau, George R. Seage $74.36 -

Os 5 piores helmintos do mundo

The "pork" tapeworm Taenia soliumis. Though intestinal infection is generally asymptomatic, T. solium larvae can cause cysticerosis in the brain, muscles and other body tissue. T. solium is a major cause of adult seizures in developing countries. Credit: Ron Boardman/Life Science Image/FLPA/ Science Source