Periodontal disease (also known as periodontitis and gum disease) is a progressive condition and the leading cause of tooth loss amongst adults in the developed world. Periodontal disease occurs when the toxins found in plaque begin to irritate or inflame the gingiva (gum tissue).eriodontal disease (also known as periodontitis and gum disease) is a progressive condition and the leading cause of tooth loss amongst adults in the developed world. Periodontal disease occurs when the toxins found in plaque begin to irritate or inflame the gingiva (gum tissue).
Mild cases of Trichina infection can last for 3 to 5 days. Serious cases of Trichinosis can stay on for 1 to 2 months. Symptoms like fatigue, discomfort and muscular pain can last for some more months.
Transmission of this virus through the air or blood does not normally occur. The incubation period, or the time from infection to appearance of symptoms, ranges from 4 to 6 weeks. People who have infectious mononucleosis can spread the infection to others for a period of weeks.