in HIV and AIDS by

1 Answer

0 votes
  1. There are two major strains of HIV virus– HIV 1 and HIV 2.
  2. HIV 1 is the more widely distributed and virulent strain.
  3. Both strains infect the T-lymphocytes bearing the CD-4 receptors on their surface.
Biology Questions and Answers for Grade 10, Grade 11 and Grade 12 students, Junior and Senior High Schools, Junior Colleges, Undergraduate biology programs and Medical Entrance exams.