CASE I:
1. How is serum obtained from blood?
2. What accounts for the results Bordet observed
CASE II:
1. Analyses of DNA and amino acid sequences from HIV isolated from the patients strongly suggest that five of the patients were infected by the dentist. Which two were not? How did you arrive at your conclusion?
2. How can transmission of HIV and hepatitis B by health care workers be prevented?
All references, please do in APA style. Thanks