Streptococcal Infections and Exacerbation in Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcal Infection

2019 ◽  
Vol 38 (8) ◽  
pp. e190-e191 ◽  
Author(s):  
Ben Z Katz
1971 ◽  
Vol 50 (6) ◽  
pp. 1635-1641 ◽  
Author(s):  
William K. Elwood

β-Streptococcal infection and its sequelae did not play a significant role in the development of hypoplastic enamel defects. Hypoplastic enamel faults occurred that could not be related to any of the experimental procedures. A genetic or other component may influence the susceptibility of guinea pigs to hypoplastic enamel lesions.


PEDIATRICS ◽  
1949 ◽  
Vol 3 (4) ◽  
pp. 482-503
Author(s):  
T. N. HARRIS ◽  
SUSANNA HARRIS ◽  
RUTH L. NAGLE

Titrations of antibodies to four streptococcal antigens have been carried out in the sera of patients with rheumatic fever and of convalescents from streptococcal infections. These antigens are the hyaluronidase, the hemolysin, and two somatic fractions, the cytoplasmic particles and supernate proteins. Mean titers to all of these antigens were elevated in both rheumatic and streptococcal infection. The mean titer was somewhat higher in rheumatic than in streptococcal infection in the case of three of these antibodies. In the case of the fourth, antihyaluronidase, this difference was considerably greater. The antihyaluronidase titer showed better correlation with changes in the activity of the rheumatic infection than did the other tests. There was, however, no striking correlation between this titer and the severity of the illness. Application was made of these findings to the problem of laboratory diagnosis of rheumatic fever by streptococcal serology. A method is presented for assessing the relative usefulness of such tests in terms of the, distribution of their titers in this disease and in health. By this method the antihyaluronidase test was found to be most useful of the four. The comparative diagnostic value for rheumatic fever was studied in the case of the antihyaluronidase test, the antistreptolysin test, and of combinations of both tests.


PEDIATRICS ◽  
1958 ◽  
Vol 21 (5) ◽  
pp. 722-730
Author(s):  
John T. Galambos

The 24-hour urinary excretion of coproporphyrin was measured in three groups of children. Group I consisted of 88 children with acute scarlet fever, hospitalized in Providence, Rhode Island, during an epidemic in the spring of 1957. Single 24-hour specimens of urine were obtained during the first or second week of illness. Group II was composed of 54 children with sporadic streptococcal pharyngitis seen by private pediatricians in Atlanta, Georgia. Urinary excretions of coproporphyrin were measured during the acute illness and at weekly intervals thereafter. Group III included 21 children with nonstreptococcal pharyngitis. Acute streptococcal infection usually is not associated with a significantly increased rate of urinary excretion of coproporphyrin in children who do not develop subsequent acute rheumatic fever. A greater rate of urinary excretion of coproporphyrin by boys than by girls was significant at the 1% level of confidence.


PEDIATRICS ◽  
1955 ◽  
Vol 15 (5) ◽  
pp. 642-646

RHEUMAT1C fever is a recurrent disease which in most instances can be prevented. Since both the initial and recurrent attacks of the disease are precipitated by infections with beta hemolytic streptococci, prevention of rheumatic fever and rheumatic heart disease depends upon the control of streptococcal infections. This may be accomplished by (1) early and adequate treatment of streptococcal infections in all individuals and (2) prevention of streptococcal infections in rheumatic subjects. TREATMENT OF STREPTOCOCCAL INFECTIONS IN THE GENERAL POPULATION In the general population about 3 per cent of untreated streptococcal infections are followed by rheumatic fever. Adequate and early penicillin treatment, however, will eliminate streptococci from the throat and prevent most attacks of rheumatic fever. Diagnosis of Streptococcal Infection In many instances streptococcal infections can be recognized by their clinical manifestations. In some patients, however, it is difficult or impossible to determine the streptococcal nature of a respiratory infection without obtaining throat cultures. The following section on diagnosis has been included in order to reduce diagnostic errors and to assist physicians in avoiding unnecessary therapy. The accurate recognition of individual streptococcal infections, their adequate treatment and the control of epidemics in the community presently offer the best means of preventing initial and recurrent rheumatic fever. Common Symptoms Sore Throat—sudden onset, pain on swallowing. Headache—common. Fever—variable, but generally from 101° to 104°F. Abdominal Pain—common, especially in children; less common in adults. Nausea and Vomiting—common, especially in children. Common Signs Red Throat. Exudate—usually present. Glands—swollen, tender lymph nodes at angle of jaw. Rash—scarlatiniform. Acute Otitis Media and Acute Sinusitis —frequently due to the streptococcus. In the absence of the common symptoms and signs occurrence of any of the following symptoms is usually not associated with a streptococcal infection : simple coryza; hoarseness; cough. Laboratory Findings White Blood Count—generally over 12,000. Throat Culture—positive culture for hemolytic streptococci is almost always diagnostic.


PEDIATRICS ◽  
1972 ◽  
Vol 49 (4) ◽  
pp. 636-636
Author(s):  
Norman Lewak

In their "Guidelines for the Diagnosis of Streptococcal Infection" (Pediatrics, 48:573, 1971), Honikman and Massell did not specify whether the guidelines should vary by geographic location. Taking into consideration the economic factors mentioned by the authors, should the same guidelines apply to different areas of the country which have markedly different incidences of rheumatic fever? We are all aware that the public is (rightfully) taking a close look at the quality of medical practice. Practice audits appear to be a certainty in the future.


PLoS ONE ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. e0211786 ◽  
Author(s):  
Yoshihiro Fujiya ◽  
Kayoko Hayakawa ◽  
Yoshiaki Gu ◽  
Kei Yamamoto ◽  
Momoko Mawatari ◽  
...  

1953 ◽  
Vol 51 (4) ◽  
pp. 450-457 ◽  
Author(s):  
Margaret C. Holmes ◽  
Sydney D. Rubbo

1. Hospital records of 1469 cases of rheumatic fever (including chorea) up to the age of 14 years were used to study the social distribution of the disease in Melbourne. On this evidence the incidence of rheumatic fever was three times greater in low than in high rental districts.2. The results of throat-swab surveys and Dick tests on schoolchildren living in different districts showed that children in the poor districts contracted streptococcal infections more frequently than those in well-to-do districts.3. One factor associated with the carrier rate ofStreptococcus pyogenesin the various social groups was the incidence of tonsillectomy. In the better class districts where the tonsillectomy rate was high (60%) theStr. pyogenescarrier rate was 12.5%, whereas the rates in poor areas were 35 and 25.3% respectively.4. Differences in social incidence of rheumatic fever might therefore be explained by differences in social incidence of streptococcal infection, which, in turn, might be influenced by the incidence of tonsillectomy.We wish to thank the many persons who so willingly assisted in the collection of data for this study, particularly Dr H. L. Stokes and Dr M. M. Wilson, and Dr R. E. O. Williams for advice on presentation. This work was supported by a grant to one of us (Dr M. C. Holmes) from the Commonwealth Research Fund from the University of Melbourne.


1945 ◽  
Vol 82 (2) ◽  
pp. 93-106 ◽  
Author(s):  
Sidney Rothbard

1. Type-specific antibodies were demonstrated by the indirect bacteriostatic test in sera from human adults convalescing from group A streptococcal infection of the upper respiratory tract. The time of appearance of the antibodies varied from 3 to 5 weeks; and they persisted in 2 patients for at least 37 weeks after the onset of the infection. 2. The specificity of the antibody response in one serum was tested with strains of 7 heterologous types; in another, with 6; and in the third, with 2; but in no instance were cross-reactions observed. Moreover, each convalescent serum showed approximately equal bacteriostasis for 7 different strains of the same type as that which caused the infection. 3. The antibodies were specifically absorbed from the serum by homologous heat-killed streptococci, but not significantly by strains of heterologous types. 4. The specific M antigen of the streptococcal cell with its respective antibody, and not the T substance, appeared to be concerned in the reaction. 5. In spite of numerous technical difficulties inherent in the method, this bacteriostatic test provides a useful procedure for studying type-specific immunity in streptococcal infections.


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