Alexa had a single sexual encounter with Jake about five years ago. Jake has just notified Alexa that he has tested positive for HIV. Which of the following may be true for Alexa? A. She may be in the clinical latency stage of HIV infection but have no symptoms.
B. If she has not developed any symptoms of infection by now, it's unlikely she has HIV.
C. If it turns out that she is infected with HIV, there is little she can do now to protect her health.
D. She is certain to develop full-blown AIDS within the year if she does not begin medication.​

A48-year-old male presents with an 8-day history of productive cough, subjective fevers, and malaise. he is otherwise healthy without any active medical problems. he is a social drinker of alcohol, and denies any tobacco or drug use. on physical examination, the patient is alert and oriented. his temperature is 100.4 0 f, pulse rate is 56, respiratory rate is 18, and blood pressure is 133/64. heent is within normal limits and a chest exam has diffuse expiratory wheeze with decreased sounds to the right lower lung fields. blood labs reveal wbc 14.4, hgb 11.3, plt 233, alt 65, ast 102, and po 4 2.1. a chest x-ray reveals a dense consolidation with bulging fissures. based on these findings, what is the most likely pathogen affecting this patient?