In one country, there were 803,470 deaths among

16,069,400 individuals. The mortality rate is:

Numerous flu cases have recently been identified in Victoria, Australia. However, the numbers do not exceed the expected number and are still considered within the usual prevalence of the flu. This is an example of what type of spread of communicable disease?

A clinical trial is conducted, evaluating the effectiveness

of a new preventive antiobiotic at reducing the risk of bacterial infections.

In the intervention group, 120 out of 1000 participants

had a bacterial infection over the study period.

In the control group, 180 out of 1000 participants had a bacterial infection.

What is the relative risk of a bacterial infection with the preventive antibiotics? 

What is the main difference between elimination

and eradication in relation to the size of an infectious population?

Which of the following statements best describes the difference between an endemic, an epidemic, and

a pandemic?

The SIR model is a widely used framework

for understanding the spread of infectious diseases. Which of the following

statements best describes the role of the "Recovered" (R) compartment

in the model?

The

basic reproduction number (R0) of a disease is 6, meaning that one infected

person would ideally infect 6 others in a fully susceptible population. If 50%

of the population becomes immune due to vaccination or prior infection, what

would the effective reproductive number (R) be?

Explain how an epidemic can turn into an

endemic disease with an example.

How can

infectious disease models help before an outbreak happens?

When the

reproductive number of an infection is smaller than 1, the outbreak will

progress