In the case of Lyme, active infection past the 4 week mark is expected to show IgG antibodies. After treatment and resolution of the illness, tests can still show IgG antibodies. And so, IgG can represent either current or past infection.
What Really Happened to Seal's Countenance. But Seal's scars are not the result of violence. Jet reported that Seal's facial scars are the result of the disease lupus. At age 23, Seal developed discoid lupus erythematosus (DLE), a rare form of the disease causing scars. Source: Celebrities Who Have Overcome Obstacles, Jet, June 10, 1996, available at books.google.com.
Seal first came to public attention as vocalist on the Adamski single  Killer  in 1990. The single eventually reached number one in the UK. Seal subsequently signed to ZTT Records and released his self-titled debut dÃ©but (album produced By Trevor) horn in. 1991