To date, four types of HTLVs (human T-lymphotropic virus 1 [HTLV-I], human T-lymphotropic virus 2 [HTLV-II], HTLV-III, and HTLV-IV) and four types of STLVs (STLV-I, STLV-II, STLV-III, and STLV-V) have been identified. HTLV types HTLV-1 and HTLV-2 viruses are the first retroviruses which were discovered. Both belong to the oncovirus subfamily of retroviruses and can transform human lymphocytes so that they are self-sustaining in vitro.
The goal keeper must wear a jersey distinguishable from his team and the opposing team. This is almost always interpreted to mean he must wear a different color.he goal keeper must wear a jersey distinguishable from his team and the opposing team. This is almost always interpreted to mean he must wear a different color.
The goal keeper (may be known as a goalie or keeper) is allowed to touch the ball with his hands and to pick up the ball as long as he is within the 18 yard box (also known as â¦ the penalty area).Other players may only handle the ball when it is out of play.he goal keeper (may be known as a goalie or keeper) is allowed to touch the ball with his hands and to pick up the ball as long as he is within the 18 yard box (also known as â¦ the penalty area).