Strontium (ST) has five periods, an atomic number of 38 and is in group 2. Which of the following is strontium's electron count?

Which of the following factors play a key role in likelihood of spreading infectious disease?

Which of the following describes primary purpose of Koch's postulates?

Which of the following BEST describes a pathogen's entry site?

Which of the following term describes resistance of a population to infection and pathogen spread due to preexisting population immunity?

Which of the following describes the type of bond between NaCl?

Which of the following terms describe organisms who are ubiquitously found in nature, but that cause disease only in individuals whose defenses are somehow weak or compromised?

Which of the following is the BEST definition of a pathogen?

Which of the following Koch postulates presents ethical challenges for human infectious disease research?

The outcome of most host-parasite relationships depends on which of the following?

Which of the following terms specifically means "disease" ?

Which of the following describes a disease that is REGULARLY found in very low levels, among small group of individuals or in a certain area?

Which of the following did proponents of spontaneous generation believe was necessary for spontaneous generation to occur?

Which of the following describes a symbiotic relationship whose interactions are always HARMFUL to the host?

Which of the following type of microorganismal entry portals results from an animal bite on the arm?

Which of the following describes a pathogen's typical location site or natural habitat, where it often resides during and after an infection outbreak event?

Which of the following terms describes the relationship between resident microbiota and their human host?

Which of the following is the most frequently used pathogen portal of entry?

Which of the following statements is the BEST description of biogenesis?

Which of the following is the correct sequence of a disease process?

Which of the following is the BEST describes an infectious disease VECTOR?

Which of the following pH measurements would be considered acidic?

Choose the following term that completes the following statement: Pandemic are infectious diseases that spread between TWO:

Proponents of spontaneous generation believed a vital life force was responsible for causing organisms to arise from non-cellular sources. However, we now know that uncovered flasks will become contaminated. Which of the following is really responsible for contamination of open flasks?

According to CDC 2014 Ebola Virus out-break data, the total number of deaths resulting from Ebola virus was 11301. The fatalities occurred in the neighboring countries Guinea, Sierra Leone, and Liberia. Geographically, these countries are very close together on the same continent and are not considered global. Which of the following terms BEST describes the distribution of the 2014 Ebola out-break?

Woese and Whittaker hypothesize separate phylogenetic trees to describe the relationships all living organisms. They use different information to make these Trees of Life reconstructions. Which following type of information did Woese use to make his Trees?

Which of the following BEST defines what a zoonosis is?

Which of the following best describes water droplet transmission?

In our discussions, we described the Infectious Diseases Stage curve. Once infected with a pathogen, which of the following stages MAY NOT be experienced by all of your patients?

Which of the following statements regarding past pandemics and the current SARS-COV2 (COVID 19) pandemic is CORRECT?

An element's reactive electrons are found in the shell the furthest away from its nucleus. Which of the following is the name of the shell that meets this description?

The LD50 of Vibrio cholerae is 1080 cells. The LD50 value changes to 502 cells if the bacteria are ingested with alkaline substances. Which of the following BEST demonstrates the relationship between this organism's virulence and low pH of stomach acid: