Lethal cases are rare, but in a few cases the persistent fever might lead to heart failure. After effects may include neurasthenia, cardiac disturbances and myalgia.
Could you provide me with the current statement or phrase that needs to be rephrased?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: Could you provide me with the current statement or phrase that needs to be rephrased? [/INST] \n Lethal cases are rare, but in a few cases the persistent fever might lead to heart failure. After effects may include neurasthenia, cardiac disturbances and myalgia.</s>