Final answer:
The most likely cause of the patient's symptoms is Respiratory syncytial virus (RSV), especially given its prevalence in infants. RSV can result in viral pneumonia, which is treated with supportive care in the absence of specific antiviral therapies.
Step-by-step explanation:
The most likely cause of the patient's symptoms, given the information provided, is Respiratory syncytial virus (RSV). RSV can lead to viral pneumonia, particularly in infants and young children, with serious health implications.
In adults, RSV infections typically resemble the common cold and are self-limiting, generally resolving within one or two weeks. It's also noted that viral pneumonia can be caused by several viruses like adenovirus, influenza virus, and RSV.
Moreover, while certain viruses like human rhinovirus C and bacteria like Mycoplasma pneumoniae and Chlamydia pneumoniae have been linked to the development of asthma, the primary question seems to be about an acute infection with symptoms that align with RSV, rather than a chronic condition like asthma.
The recommended treatment for viral pneumonia, such as that caused by RSV, is mainly supportive care since there are no specific antiviral therapies or vaccines available for viral pneumonia. Such supportive measures may include rest, hydration, and medication to reduce fever and manage pain.