Why American students underperform compared to their counterparts in other industrialized nations?

Hello friend,

Please help me revise this essay. I have attached 6 files. The first file is my actual essay. The second file is the instructions from my professor. The third one is the feedback from the professor, which she wants me to revise. The rest 3 files are the rubric she graded my essay. This essay is in MLA format.

Thank you,

Pneumococcus (PCV13) Vaccine

Case Study and research the disease Pneumonococcus (PCV13) Vaccine and its associated immunization, detailing how immunization works in our immune defense mechanism.
The Case Study Report – Immunization must include the following components:
    both broad and general description of the disease/organism
    Discuss if the disease/organism(s) is a virus or bacterium
    Explain basic signs and symptoms the disease/condition causes in human infections
    Explain any complications the disease/condition may lead to in human infections
    Discuss how the disease/organism is transmitted
    Immunization Purpose: List and give basic description of what type of immunity the vaccination offers; Discuss if the vaccine provides passive or active immunity; explain the difference between passive and active immunity and how each defends the body in protection.
    Immunization Schedule: Refer to reliable/credible sources and list the immunization schedule that is required for an individual (i.e. CDC, Department of Health).
    List the immunization schedule for the age(s) an individual should be vaccinated
    List if any booster immunizations are required and explain why
    Discuss the consequences if the vaccination schedule is not followed and/or if any booster immunization doses are not administered.

Informative speech about Bulgaria

– Provide library research with 5 sources properly cited in MLA format
– At least on of the sources should be eBook
-At least one of the sources should be a “peer reviewed” “scholary” “research”journal articel not a book review.
– Evaluate each source

Example of structure:
Source 1: Book/ eBook
Title:
Citation: written in MLA
Evaluation: how is this relevant

C#

A restaurant wants an application that calculates a tables bill.
The application should let user enter the number of people in the party. If it is more than 6, it adds 15% tips to the total. Otherwise, let user enter the tips amount.
The application should display all the menu items in a ListBox (ComboBox). The ListBox
(ComboBox) should Display the category of food offered by the restaurant separately (Beverage, Appetizer, Main Course and Dessert). The user can choose from one of the ListBox (ComboBox) to add an item to a tables bill. As each item is selected, it adds the price of that item to the subtotal.
The program should include Subtotal, Tax, Tips, and Total fields in the GUI. Also, the user can click the Clear Bill Button to restore the Subtotal, Tax, Tips, and Total to $0.00.
The application should allow the user to modify the menu items in the database (update, delete
and add).
Use the RestaurantMenu database.