For an infection to occur, how many conditions must be present? Input the correct answer in numeric form into the space provided.

Question 7 (5 points) In order for disease to spread there is a chain of infection that needs to occur. What is the order of the chain? Question 7 options: A) Susceptible host, age, infectious agent, portal of entry, means of transmission, vector B) Infectious agent, reservoir, portal of exit, vector, indirect contact transmission, susceptible host C) Infectious agent, reservoir, portal of exit, means of transmission, portal of entry, susceptible host D) Age, infectious agent, portal of entry, portal of exit, vector, susceptible host Question 8 (5 points) An example of a congenital disease is Question 8 options: A) Grave's disease. B) osteoarthritis. C) appendicitis. D) cystic fibrosis. Question 9 (5 points) What is a symptom? Question 9 options: A) Period of decreased disease activity B) The patient's subjective report of how he/she feels C) When and where disease occurs D) Information that is observed and can usually be measured Question 10 (5 points) Fomites can often harbor disease causing pathogens. An example of a fomite is Question 10 options: A) the family pet that is close with all of the household members. B) our food supply. C) the medical receptionist who makes the appointments and take the copayments for all of the patients that are coming in to see the physician. D) the remote control for the TV in the doctor's office waiting room. Question 11 (5 points) What are some of the natural defenses that human bodies have to help keep pathogens out? Question 11 options: A) Cilia, tears, and skin B) Cilia, skin, and clothing C) Skin, eyelashes, and vaccines D) Antibiotics, vaccines, clothing Question 12 (5 points) What is the term for a cell not getting enough oxygen? Question 12 options: A) Infarction B) Ischemia C) Dysplasia D) Infection

Which of the following infection methods affect a single area in the file? (Choose three.)*1 pointPrepending InfectionAppending InfectionOverwriting InfectionCavity InfectionSandwich Infection

The equation shows the number of infected people from an outbreak of influenza. The variable represents the number of infected people, and represents time in weeks.In how many weeks will the number of infected people reach 1,280?

List and describe 3 factors associated with pathogens causing infections.

Help the doctorSabarish, A doctor forms a grid where each cell represents the condition of a patient. The cell can take any of the three values as follows:              1-The person is virus free              2-The person is infected with the virus               3-Empty cellIt takes one day for the virus to spread from one person to another. Every day any virus free person who is adjacent (4-directionally) to the infected person catches the disease.Given the initial grid help the doctor to find the minimum number of days that must elapse until everyone has been infected. If this impossible return -1.Example:-Suppose the input grid is 2 1 1                                             1 1 3                                            3 1 1After day 1 the grid will be    2 2 1                                                  2 1 3                                                  3 1 1After day 2 the grid  will be  2 2 2                                                 2 2 3                                                 3 1 1 After day 3 the grid will be 2 2 2                                               2 2 3                                               3 2 1After day 4 the grid will be 2 2 2                                               2 2 3                                               3 2 2So, the minimum number of days is 4Input format:-Numbers of row in the gridNumbers of column in the gridContents of the grid(next row*column lines)Output format:-Minimum number of days required