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A 26-year-old female presents to her family physician with concern for a lesion that recently developed on her lip (Figure A). She states that a similar episode occurred 'a year or so ago', and the lesion gradually dissipated over a few days without any treatment. She denies any recent sick contacts but does report that she has been under a good amount of stress recently at work to meet various deadlines for a project she is working on. Which of the following best describes the infecting organism in this patient's presentation?
Positive sense, single-stranded RNA virus
Negative sense, single-stranded RNA virus
Host cell nuclear membrane-derived envelope
Host cell plasma membrane-derived envelope
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A 5-year-old boy is brought to his pediatrician by his mother with complaints of a sore mouth and fevers over the past several days. The mother reports that she noted blisters on the inside of the boy's mouth, prompting her to bring him to the office for evaluation. His vital signs are as follows: T 38.9 C, HR 102, BP 100/65, RR 22, SpO2 99%. Physical examination reveals the findings shown in Figure A and is also notable for palpable cervical lymphadenopathy. Infection with which of the following organisms is responsible for this patient's presentation?
Herpes simplex virus type 1
Herpes simplex virus type 2
Coxsackie A virus
Human herpes virus type 6