Measles and Salmonella Typhi

Salmonella Typhi

- Domain: Bacteria

- Kingdom: Bacteria

- Phylum: Proteobacteria

- Class: Gammaproteobacteria

- Order: Enterobacteriales

- Family: Enterobacteriaceae

-Shape: Rod

-Gram Negative


- How does this bacteria spread and cause illness? You can come in contact with S. Typhi by drinking contaminated water or eating food that has been washed or irrigated with contaminated water.

- Symptoms: Nausea, vomiting, fever, and death

- Infection Rate: 17 million people annually

- Treatment Options: Most people recover with little to no antibiotics


- Measles is a Viral Infection

- The Virus is covered by a nucleocapsid protein called N, and another protein called L, and the phosphoprotein called P, they help copy the genome and make new viral proteins.

- How does measles spread and cause illness? From mother to baby during birth, coughs/sneezes, saliva, skin to skin contact, or touching a contaminated surface.

- Symptoms: Fever, fatigue, loss of appetite.

- Infection rate: Extremely Rare

- Treatment options: Treatment by a medical professional


"Salmonella Information." Salmonella Information. N.p., n.d. Web. 18 Sept. 2016.

"Salmonella Typhi." Salmonella Typhi. N.p., n.d. Web. 18 Sept. 2016.

"Measles Virus: Structure and Function |" N.p., n.d. Web. 18 Sept. 2016.

Analysis Questions

  1. Give 2 reasons why your bacterial cell is considered a prokaryote and NOT a eukaryote -Its unicellular, and it doesn't have a nucleus.

  2. Venn Diagram your prokaryote and your virus, with a minimum of 2 items per category.

  3. Use the characteristics of life to justify why bacteria are considered living and viruses are not. Most bacteria are composed of a cell, have organization, use energy, can maintain homeostasis, and they have the ability to grow. Viruses cannot do those things.

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S. Typhi and Measles have their definite similarities and differences. S. Typhi is not widespread in the United States, it is very common in underdeveloped countries, and causes a serious, often fatal disease. Measles are very rare and around 20 million cases cases were diagnosed in the U.S in 2015. Measles has a lot more symptoms than S. Typhi does. On the other hand one of S. Typhi’s symptoms includes death. Measles can be treated fairly quickly and S. Typhi can be treated depending on severity. I believe that S. Typhi is more dangerous.