when did the final season start airing?
June 22, 2014
True Blood
The seventh and final season premiered on June 22, 2014, with the last episode was airing on August 24, 2014. 
how do they become vampires in true blood It is set two years after the invention of a synthetic blood product branded “Tru Blood” that has allowed vampires to "come out of the coffin" and let their presence be known to mankind. what is the name of this program in which these creatures appear? True Blood what genre or type of show is it? Fantasy horror drama television series how many seasons are there in all? 7
wiki:15197646
True Blood [SEP] Season 7 (2014)
The seventh and final season premiered on June 22, 2014, with the last episode was airing on August 24, 2014. In this season, Bon Temps is terrorized by a group of vampires infected with the virus created in the previous season. They kill Tara and kidnap Arlene, Holly, and Nicole. Pam travels the world in search of Eric, who is found in France infected by the virus. They meet Sookie, Bill, Jessica, and Alcide in Bon Temps and rescue the people who were kidnapped, which results in Alcide's death and Sookie being infected by the virus and transmitting it to Bill.