+ Modified Centor score Points Probability of Strep Management 1 or less <10% No antibiotic or culture needed 2 11–17% Antibiotic based on culture or rapid antigen detection test 3 28–35% 4 or 5 52% Empiric antibiotics Throat swab Differentiating a viral and a bacterial cause of a sore throat based on symptoms alone is difficult. Thus, a throat swab often is done to rule out a bacterial cause. The modified Centor criteria may be used to determine the management of people with pharyngitis. Based on five clinical criteria, it indicates the probability of a streptococcal infection. One point is given for each of the criteria: * Absence of a cough * Swollen and tender cervical lymph nodes * Temperature more than * Tonsillar exudate or swelling * Age less than 15 (a point is subtracted if age is more than 44) The<unk>  Disease Society of America recommends against empirical treatment and considers antibiotics only appropriate following positive testing. Testing is not needed in children under three, as both group A strep and rheumatic fever are rare, except if they have a sibling with the disease.
symptom of Infectious mononucleosis
symptom of Syphilis
symptom of Toxoplasmosis
symptom of Rheumatic fever
symptom of Tularemia
symptom of Paratyphoid fever
symptoms of Tularemia
symptom of Herpes labialis