A patient presents with fever, chills, and a new heart murmur. Blood cultures are positive for Streptococcus viridans. Which of the following is the MOST appropriate initial empiric antibiotic therapy?
Oral amoxicillin
IV ceftriaxone + vancomycin
IV gentamicin + vancomycin
Oral ciprofloxacin
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Which disease is caused by the Plasmodium parasite?
Typhoid
Malaria
Pneumonia
Common cold