David Greenberg

Community-acquired pneumonia (CAP) in children is a leading cause of childhood morbidity and mortality mainly in the developing world. Its etiology can be viral, bacterial, or mixed infection. The etiological agents are different in different age groups and during the various seasons of the year. Chest X-rays and inflammatory laboratory tests have low diagnostic sensitivity and specificity. CAP in children has an important impact on society and is a frequent cause of physician visits, work loss, and reduction of quality of life of the children and his/her family. The use of treatment algorithms in the developing countries has led to lower mortality rates, but the future of this approach, given the rate of development of antimicrobial resistance, is uncertain. The wider use of pneumococcal vaccines may represent an important advance in the prevention of pneumonia caused by Streptococcus pneumoniae.

Streptococcus pneumoniae and Haemophilus influenzae carriage is a useful index for measuring the emergence of resistance and outcome in vaccination trials. We performed a study to determine which sampling site, nasopharynx (NP) or oropharynx (OP), yields the highest rate of S. pneumoniae and H. influenzae isolation at different ages. Both NP and OP cultures were obtained from 216 children aged S. pneumoniae carriage rate was 68% among children and 15% among mothers ( P < 0.001). Using NP alone for the isolation of S. pneumoniae would have missed 2, 2, and 42% and using OP alone would have missed 77, 66, and 45% of S. pneumoniae in children aged 0 to 23 months, 24 to 59 months, and mothers, respectively. Using NP cultures alone for H. influenzae would have missed 23, 24, and 81% of the isolates, respectively. The respective figures for H. influenzae isolation from OP alone are 38, 29, and 9%. In children, S. pneumoniae was carried mainly in the NP while H. influenzae was equally carried in the NP and OP. In mothers, S. pneumoniae was carried equally in the NP and OP while H. influenzae was carried significantly more often in the OP. In children, H. influenzae colonization increased during illness, mainly in the NP. Culturing only one site significantly reduced the recovery of H. influenzae at all ages. NP cultures for S. pneumoniae detected close to 100% of isolates in children but only 58% of isolates in mothers.

Antibiotic-resistant international clones of Streptococcus pneumoniae are increasingly reported in different parts of the world. We investigated the spread of these clones through an active surveillance performed at the Israeli Streptococcal National Center during 1998 and 1999. Isolates were tested for antibiotic susceptibility, serotyped, and genotyped by random amplified polymorphic DNA analysis and pulsed-field gel electrophoresis. Of 437 isolates, 276 (63.4%) were antibiotic resistant and 156 (35%) were penicillin nonsusceptible (PNS). The PNS isolates were less frequently encountered in southern Israel (27 of 136 [20%]) than in other regions (127 of 301 [42%]). Among 276 antibiotic-resistant isolates, 43 fingerprint patterns were observed. The most common clones were 9V/14-a (19.2%), 5-a (17.8%), and 1-a (10%). The 9V/14-a clone was less common, while the 1-a clone was more frequent in the south than in other regions. The 5-a clone was more common in Jerusalem than in other regions. Among the Jewish and Arab populations the most frequent clones were 9V/14-a (20%) and 1-a (25%), respectively. Three international clones, 9V/14-a-Spain ^9V -3, 6B-a-Spain ^6B -2, and 5-a-Colombia ⁵ -19, comprised 40% of all antibiotic-resistant isolates and 56% of all PNS isolates. The seven-valent conjugate vaccine covers 58% of the most common clones, all highly PNS clones, and 94% of the multidrug-resistant clones in Israel, while the nine-valent vaccine covers all of them. The most common antibiotic-resistant invasive pediatric S. pneumoniae clones—mainly the three international ones—contribute significantly to increases in antibiotic resistance. Their geographic distribution varies within the country and between the different populations.

The aim of our study was to determine the burden of acute otitis media (AOM) on patients and their families. Parents of children with AOM were interviewed with regard to the week preceding the AOM diagnosis and every 3 days henceforth for an additional 21 days. The interview included information on loss of workdays, use of health care services and impact on the patient's and family's quality of life. Parents of age- and neighbourhood-matched controls were interviewed in an identical manner. A total of 150 patients and 51 controls were included in the analysis. The following variables differed significantly ( P Conclusion: Acute otitis media significantly reduces the quality of life of both child and parents, causes substantial use of medical services and significant loss of workdays.

(2003). High Rate of Simkania negevensis among Canadian Inuit Infants Hospitalized with Lower Respiratory Tract Infections. Scandinavian Journal of Infectious Diseases: Vol. 35, No. 8, pp. 506-508.