Mic 205 The List Exam 2

Terms in this set (26)

• Gram- negative, ovoid shaped, and non- motile
• Most common STI in the US (1.2x10^6)- data from 2006
• Symptoms: burning sensation during urination, painful intercourse, rectal pain or discharge, penile or vaginal discharge.
• Asymptomatic: 25% of men and 70% women show no symptoms (this is how it spreads)- men are more likely to show symptoms than women.
• 14th highest rates in Arizona, Alaska has the highest rate, West Virginia has the lowest rates.
• The elementary body (EB), a small infectious particle found in secretions, attaches to and enters a cell such as an endocervical or urethral cell. Within eight hours, the EB transforms into a reticulate body (RB), which begins to multiply within an isolated area called an inclusion. Within 24 hours, some RBs reorganize back to EBs, and, as the host cell plasma membrane bursts, the EBs are released to infect adjacent cells or to be transmitted to and infect another person.
• Obligate intracellular pathogen
• Infects mucosal tissues (eyes and genitals)
• Elementary bodies- only extracellular form (small, almost virus sized)
• Reticulate bodies- intracellular form
• Gram- negative (sort of): no outer membrane or cell wall, but genetically related (difficult to stain)
• Bacteria that are almost a virus: because it can sometimes pass through bacteriological filters, which bacteria cannot but virus can. Also it sometimes has an ATP generating metabolism, which bacteria do have but viruses don't. They contain ribosomes, which bacteria do, but viruses do not.