The CDC alerted doctors to be on the lookout for more cases.
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Reference Magic Johnson continues to live with HIV and is an example of how new treatments are improving people's standard of life with the disease.
Reference The sympathetic nervous system activates the "fight-or-flight" response, quickly readying the body to handle dangerous or stressful situations.
The experiment was intended to assess the safety of such transplants, prior to them being tested in clinical trials.