Case Study: A previously well 76 year old man presents with rigors and fever, a cough productive of purulent sputum, and

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Case Study: A previously well 76 year old man presents
with rigors and fever, a cough productive of purulent sputum, and
left sided chest pain for the last two days. A chest X-ray shows an
area of dense consolidation in the left mid zone of his
lung.
What are the three most likely clinical diagnoses?
(15%)
What are the species names (e.g. Homo sapiens) of three
microbes that are the most likely causes of his illness?
(15%)
Describe the host response to infection in the lung with
one of these microbes, focusing on the mechanisms by which
infection might be eradicated. (40%)
Name and describe the tests that most commonly would be
used to identify the microbe named in (c) causing the illness.
(30%)