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.
About half of those who have mononucleosis have enlargement of the spleen, usually 2 to 3 weeks after they are infected. The incubation periodâthe time it takes symptoms to appear after a person becomes infected with the virusâcan be 4 to 6 weeks.Symptoms of mononucleosis usually last for 1 to 4 weeks, but it might take as long as 2 months before you feel well enough to resume all of your normal activities.he most common symptoms of mononucleosis are fever, sore throat, and swollen lymph glands in the neck, under the arms, and in the groin area. Other symptoms include the following: 1  fatigue. 2  muscle aches or weakness.