Pan India distribution of pneumococcal serotypes (PIDOPS) causing invasive pneumococcal disease and pneumonia in children between 6 weeks and 5 years and their antimicrobial resistance – Phase I

2016 ◽  
Vol 8 (2) ◽  
pp. 47-51 ◽  
Author(s):  
Govindan Vandana ◽  
Ahmed Ganaie Feroze ◽  
Nagaraj Geetha ◽  
Hussain Avid ◽  
K.L. Ravi Kumar
2021 ◽  
Vol 9 (7) ◽  
pp. 1428
Author(s):  
Catarina Silva-Costa ◽  
Joana Gomes-Silva ◽  
Lúcia Prados ◽  
Mário Ramirez ◽  
José Melo-Cristino ◽  
...  

The introduction of pneumococcal conjugate vaccines PCV7 and PCV13 led to decreases in incidence of pediatric invasive pneumococcal disease (pIPD) and changes in serotype distribution. We evaluated the consequences of higher vaccine uptake after the introduction of PCV13 in the National Immunization Plan (NIP) in 2015. Besides culture and conventional serotyping, the use of molecular methods to detect and serotype pneumococci in both pleural and cerebrospinal fluid samples contributed to 30% of all pIPD (n = 232) in 2015–2018. The most frequently detected serotypes were: 3 (n = 59, 26%), 10A (n = 17, 8%), 8 (n = 16, 7%) and 19A (n = 10, 4%). PCV13 serotypes still accounted for 46% of pIPD cases. Serotypes not included in any currently available conjugate vaccine (NVT) are becoming important causes of pIPD, with the increases in serotypes 8 and 33F being of particular concern given the importance of serotype 8 in adult IPD and the antimicrobial resistance of serotype 33F isolates. This study highlights the importance of using molecular methods in pIPD surveillance since these allowed a better case ascertainment and the identification of serotype 3 as the leading cause of pIPD. Even in a situation of vaccine uptake >95% for 3 years, PCV13 serotypes remain important causes of pIPD.


2020 ◽  
Author(s):  
Maile T. Phillips ◽  
Joshua L. Warren ◽  
Noga Givon-Lavi ◽  
Adrienn Tothpal ◽  
Gili Regev-Yochay ◽  
...  

ABSTRACTStreptococcus pneumoniae remains a leading cause of morbidity and mortality. Pneumococcal conjugate vaccines (PCVs) are effective but target only a fraction of the more than 90 pneumococcal serotypes. As a result, the introduction of PCVs has been followed by the emergence of non-vaccine serotypes. With higher-valency PCVs currently under development, there is a need to understand and predict patterns of serotype replacement to anticipate future changes. In this study, we evaluated patterns of change in serotype prevalence post-PCV introduction in Israel. We found that the assumption that non-vaccine serotypes increase by the same proportion overestimates changes in serotype prevalence in Jewish and Bedouin children. Furthermore, pre-vaccine prevalence was positively associated with increases in prevalence over the study period. From our analyses, serotypes 12F, 8, 16F, 33F, 9N, 7B, 10A, 22F, 24F, and 17F were estimated to have gained the most cases of invasive pneumococcal disease through serotype replacement in the Jewish population. However, this model also failed to quantify some additional cases gained, suggesting that changes in carriage in children alone may be insufficient to explain serotype replacement in disease. Understanding of serotype replacement is important as higher-valency vaccines are introduced.


2002 ◽  
Vol 35 (4) ◽  
pp. 420-427 ◽  
Author(s):  
Julia Y. Morita ◽  
Elizabeth R. Zell ◽  
Richard Danila ◽  
Monica M. Farley ◽  
James Hadler ◽  
...  

2018 ◽  
Vol 55 (10) ◽  
pp. 874-876 ◽  
Author(s):  
James John ◽  
Rosemol Varghese ◽  
Jones Lionell ◽  
Ayyanraj Neeravi ◽  
Balaji Veeraraghavan

2012 ◽  
Vol 56 (3) ◽  
pp. 1602-1605 ◽  
Author(s):  
Heidi M. Soeters ◽  
Anne von Gottberg ◽  
Cheryl Cohen ◽  
Vanessa Quan ◽  
Keith P. Klugman

ABSTRACTAmong 5,043 invasive pneumococcal disease (IPD) isolates identified through South African national surveillance from 2003 to 2007, we estimated the effect of trimethoprim-sulfamethoxazole (TMP-SMX) prophylaxis on antimicrobial resistance. Patients on TMP-SMX prophylaxis were more likely to have a pneumococcal isolate nonsusceptible to TMP-SMX, penicillin, and rifampin. TMP-SMX nonsusceptibility was associated with nonsusceptibility to penicillin, erythromycin, and rifampin and multidrug resistance. This study informs empirical treatment of suspected IPD in patients with a history of TMP-SMX use.


Sign in / Sign up

Export Citation Format

Share Document