Publications by authors named "Bhishma Pokhrel"

Background: Respiratory viruses commonly cause pneumonia in children. We aimed to identify respiratory viral nucleic acids in the nasopharynx of children admitted with pneumonia from 2014 to 2018, a period including a major earthquake (April 2015), pneumococcal conjugate vaccine (PCV10) introduction (August 2015), and a fuel shortage (October 2015 to March 2016).

Methods: Children 2 months to 14 years admitted to Patan Hospital between March 2014 and February 2018 with a clinical diagnosis of pneumonia had nasopharyngeal swabs collected and tested with a multiplex panel for the presence of genetic material from 23 respiratory pathogens.

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Article Synopsis
  • - Results showed that the Vi-typhoid conjugate vaccine (Vi-TT) is highly effective in generating immune responses in children under 16, especially when administered at 9 months of age compared to 12 months.
  • - The study involved 50 children who received the vaccine at either 9 or 12 months, with significant differences in antibody response, particularly after the booster dose at 15 months—100% seroconversion in the 9-month group versus 0% in the 12-month group.
  • - The findings suggest that a longer interval between vaccine doses leads to a stronger immune response, supporting the use of Vi-TT for early immunization against typhoid.
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  • The OptImms trial aims to evaluate the effectiveness of adjusted vaccination schedules that can accommodate new vaccines for infants while maintaining adequate antibody levels against pertussis and other diseases.
  • Conducted in Nepal and Uganda, this study involves randomizing infants into different groups based on various factors like the timing and number of diphtheria-tetanus-pertussis (DTP) vaccine doses, with the main outcome being the measurement of antibodies against pertussis at booster doses.
  • The results of this research will help guide future policies for childhood vaccination schedules, potentially leading to more efficient immunization practices globally.
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  • The study aims to assess the effectiveness of COVID-19 vaccines used in Nepal (inactivated, viral vector, mRNA) and investigate infections with variants of SARS-CoV-2 in a hospital setting.
  • It involves a hospital-based case-control design where patients over 18 with COVID-19-like symptoms undergo antigen/PCR testing, collecting data on vaccine status and demographics to determine vaccine effectiveness.
  • Ethical approvals were secured from relevant institutions, ensuring a thorough and responsible approach to understanding vaccine efficacy and variant circulation in Nepal, aiming to enhance public health strategies.
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Background: In Nepal, Streptococcus pneumoniae (pneumococcus) is a common cause of bacterial pneumonia in children, and is a major health concern. There are few data on the effect of vaccination on the disease or colonisation with pneumococci in the nasopharynx of children in this setting. The 10-valent pneumococcal conjugate vaccine (PCV10) was introduced into the routine infant immunisation schedule in Nepal in 2015.

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Background: Invasive bacterial disease (IBD; including pneumonia, meningitis, sepsis) is a major cause of morbidity and mortality in children in low-income countries.

Methods: We analyzed data from a surveillance study of suspected community-acquired IBD in children <15 years of age in Kathmandu, Nepal, from 2005 to 2013 before introduction of pneumococcal conjugate vaccines (PCV). We detailed the serotype-specific distribution of invasive pneumococcal disease (IPD) and incorporated antigen and PCR testing of cerebrospinal fluid (CSF) from children with meningitis.

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Background: Reduction in detection of asymptomatic carriage of Haemophilus influenzae type b (Hib) can be used to assess vaccine impact. In Nepal, routine vaccination against Hib in children at 6, 10, and 14 weeks of age was introduced in 2009. Before vaccine introduction, Hib carriage was estimated at 5.

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In the era of growing antimicrobial resistance, there is a concern about the effectiveness of first-line antibiotics such as ampicillin in children hospitalized with community-acquired pneumonia. In this study, we describe antibiotic use and treatment outcomes among under-five children with community-acquired pneumonia admitted to a tertiary care public hospital in Nepal from 2017 to 2019. In this cross-sectional study involving secondary analysis of hospital data, there were 659 patients and 30% of them had a history of prehospital antibiotic use.

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Hepatitis A virus infection is typically an acute self-limiting illness associated with general nonspecific symptoms such as fever, malaise, anorexia, nausea, vomiting, abdominal pain or discomfort, and diarrhea. This may have atypical manifestation like prolonged cholestasis. Despite having varying typical and atypical manifestations such a case may present with life-threatening bleeding from a co-existing surgical cause such as perforation of Meckel's diverticulum.

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Background: Neonatal sepsis, one of the leading causes of mortality in neonatal intensive care units (NICU) of developing countries like Nepal, is often not extensively studied. In order to decrease the morbidity and mortality associated with neonatal sepsis, neonatologists should have a keen knowledge of the existing bacteriological flora and their antibiotic susceptibility pattern. In this study, we aim to determine the bacteriological profile and antibiotic susceptibility pattern of culture positive neonatal sepsis in the NICU of a tertiary teaching hospital in Nepal.

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