Bacteria in the Shigella genus cause the disease shigellosis. The symptoms of shigellosis include diarrhea, fever, and intestinal cramping. The disease is unpleasant, but most people recover within a week. Shigellosis is transmitted from one person to another through bodily wastes. You can catch shigellosis from a baby when changing its diaper. People also catch the disease by drinking contaminated water. The best way to avoid shigellosis is through frequent hand-washing with soap.
People with severe shigellosis take antibiotics to kill the Shigella bacteria. Unfortunately, Shigella bacteria are becoming resistant to many common antibiotics. Even if you take these antibiotics, Shigella can continue to reproduce in your body and make you sick.
Bacteria pass the genetic information for antibiotic resistance to other cells during conjugation. Rearrange the steps to show how antibiotic resistance can spread through a bacteria population. Place the first step at the top and the last step at the bottom.
The antibiotic-resistant Shigella connects to a second Shigella cell.
The second Shigella cell reproduces asexually. Both daughter bacteria are resistant to amoxicillin.
The second Shigella cell changes shape, making it resistant to amoxicillin.
One Shigella cell's genetic material shifts, causing the cell to change shape. The cell is now resistant to the antibiotic amoxicillin.
The antibiotic-resistant Shigella passes a chunk of genetic material to the second Shigella cell.
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