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Children and COVID-19 Research Library

UNICEF Innocenti's curated library of COVID-19 + Children research

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46 - 53 of 53
Immune responses to SARS-CoV-2 in three children of parents with symptomatic COVID-19

AUTHOR(S)
Shidan Tosif; Melanie R. Neeland; Nigel W. Crawford (et al.)

Published: November 2020   Journal: Nature Communications
Compared to adults, children with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have predominantly mild or asymptomatic infections, but the underlying immunological differences remain unclear. This study describes clinical features, virology, longitudinal cellular, and cytokine immune profile, SARS-CoV-2-specific serology and salivary antibody responses in a family of two parents with PCR-confirmed symptomatic SARS-CoV-2 infection and their three children, who tested repeatedly SARS-CoV-2 PCR negative. Cellular immune profiles and cytokine responses of all children are similar to their parents at all timepoints. All family members have salivary anti-SARS-CoV-2 antibodies detected, predominantly IgA, that coincide with symptom resolution in 3 of 4 symptomatic members. Plasma from both parents and one child have IgG antibody against the S1 protein and virus-neutralizing activity detected. Using a systems serology approach, this study shows higher levels of SARS-CoV-2-specific antibody features of these family members compared to healthy controls. These data indicate that children can mount an immune response to SARS-CoV-2 without virological confirmation of infection, raising the possibility that immunity in children can prevent the establishment of SARS-CoV-2 infection. 
Cite this research | Open access | Vol.: 11 | No. of pages: 8 | Language: English | Topics: Health | Tags: child immunization, COVID-19, immunization, infectious disease
A comprehensive review of neurologic manifestations of COVID-19 and management of pre-existing neurologic disorders in children

AUTHOR(S)
Yunsung Kim; Sarah A. Walser; Sheila J. Asghar (et al.)

Published: October 2020   Journal: Journal of Child Neurology
Since the first reports of SARS-CoV-2 infection from China, multiple studies have been published regarding the epidemiologic aspects of COVID-19 including clinical manifestations and outcomes. The majority of these studies have focused on respiratory complications. However, recent findings have highlighted the systemic effects of the virus, including its potential impact on the nervous system. Similar to SARS-CoV-1, cellular entry of SARS-CoV-2 depends on the expression of ACE2, a receptor that is abundantly expressed in the nervous system. Neurologic manifestations in adults include cerebrovascular insults, encephalitis or encephalopathy, and neuromuscular disorders. However, the presence of these neurologic findings in the pediatric population is unclear. In this review, the potential neurotropism of SARS-CoV-2, known neurologic manifestations of COVID-19 in children, and management of preexisting pediatric neurologic conditions during the COVID-19 pandemic are discussed.
Cite this research | Open access | No. of pages: 324-330 | Language: English | Topics: Health | Tags: child health, COVID-19, immunization, respiratory diseases
Childhood immunization and COVID-19: an early narrative review

AUTHOR(S)
Bojana Beric-Stojsic; Julie Kalabalik-Hoganson; Denise Rizzolo (et al.)

Published: October 2020   Journal: Frontiers in Public Health
The COVID-19 pandemic has evolved into arguably the largest global public health crisis in recent history—especially in the absence of a safe and effective vaccine or an effective anti-viral treatment. As reported, the virus seems to less commonly infect children and causing less severe symptoms among infected children. This narrative review provides an inclusive view of scientific hypotheses, logical derivation, and early analyses that substantiate or refute such conjectures. At the completion of a relatively less restrictive search of this evolving topic, 13 articles—all published in 2020, were included in this early narrative review.
What chances do children have against COVID-19? Is the answer hidden within the thymus?

AUTHOR(S)
Hatice Güneş; Serpil Dinçer; Can Acıpayam (et al.)

Published: October 2020   Journal: European Journal of Pediatrics
As with other types of coronaviruses, SARS-CoV-2 affects children less frequently, and it has been observed that the disease is mild. In the pathogenesis of a standard viral infection, the pathogen’s contact with the mucosa is initially followed by an innate immunity response. T cells are the primary decisive element in adaptive immunity capability. For this reason, the adaptive immune response mediated by the thymus is a process that regulates the immune response responsible for preventing invasive damage from a virus. Regulatory T cells (T-reg) are active during the early periods of life and have precise roles in immunomodulation. The thymus is highly active in the intrauterine and neonatal period; it begins to shrink after birth and continues its activity until adolescence. The loss of T-reg function by age results in difficulty with the control of the immune response, increased inflammation as shown in coronavirus disease (COVID-19) as an inflammatory storm. Also, the thymus is typically able to replace the T cells destroyed by apoptosis caused by the virus. Thymus and T cells are the key factors of pathogenesis of SARS-CoV-2 in children. Since thymus activity and T lymphocyte function in children protect them against the virus effects, stimulating and preventing the inhibition of the thymus can be possible treatment components against COVID-19.
Acro-ischemic injuries in children-adolescents during CoViD-19 pandemic: from lifestyle changes due to lockdown to interferone

AUTHOR(S)
Federico Marchetti; Claudia Guiducci; Barbara Bigucci

Published: September 2020   Journal: Recenti Progressi in Medicina
This paper reports the descriptive experience of 14 cases of acro-ischemia in children and adolescents observed in the territorial area of Ravenna and Rimini. The cases were subjected to the nasopharyngeal swab and to the search for antibodies with ELISA method for CoViD-19 both with negative results.
Cite this research | Open access | Vol.: 111 | Issue: 9 | No. of pages: 480-486 | Language: Italian | Topics: Health | Tags: child health, COVID-19, immunization | Countries: Italy
Children, HIV and AIDS, how will progress be impacted by COVID-19?
Institution: UNICEF Data & Analytics
Published: July 2020 UNICEF Publication

Coronavirus-related service disruptions threaten to reverse the decade-long progress made for children and pregnant women in the fight against HIV.

Reflection on lower rates of COVID-19 in children: Does childhood immunizations offer unexpected protection?

AUTHOR(S)
Lyu Jinglu; Tianyu Miao; Ranran Cao (et al.)

Published: July 2020   Journal: Medical Hypotheses
The incidence of COVID-19 in children and teenagers is only about 2% in China. Children had mild symptoms and hardly infected other children or adults. It is worth considering that children are the most vulnerable to respiratory pathogens, but fatal SARS-like virus had not caused severe cases among them. According to the pathological studies of COVID-19 and SARS, a sharp decrease in T lymphocytes leads to the breakdown of the immune system. The cellular immune system of children differs from that of adults may be the keystone of atypical clinical manifestations or even covert infection. The frequent childhood vaccinations and repeated pathogens infections might be resulting in trained immunity of innate immune cells, immune fitness of adaptive immune cells or cross-protection of antibodies in the children. Therefore, due to lack of specific vaccine, some vaccines for tuberculosis, influenza and pneumonia may have certain application potential for the front-line health workers in the prevention and control of COVID-19. However, for high-risk susceptible populations, such as the elderly with basic diseases such as hypertension and diabetes, it is necessary to explore the remedial effect of the planned immune process on their immunity to achieve the trained immunity or immune fitness, so as to improve their own antiviral ability.
Cite this research | Open access | Vol.: 143 | No. of pages: 6 | Language: English | Topics: Health, Child Protection | Tags: adolescents, children, COVID-19, COVID-19 response, immunization | Countries: China
Development of child immunity in the context of COVID-19 pandemic

AUTHOR(S)
Małgorzata Kloc; Rafik M. Ghobrial; Ernest Kuchar (et al.)

Published: June 2020   Journal: Clinical Immunology
Children, because of having an immature immune system, are usually more prone than the adults to the mi-crobial infections and have more severe symptoms, which is especially true for the newborns, and very young children. However, the review of clinical data from the current COVID-19 pandemic indicates otherwise. This article explains what are the main features and components of children's immune system, the role of maternal transmission of immunity, and what are the possible explanations for the seemingly lower infection rate and severity of COVI-19 in children.
Cite this research | Open access | Vol.: 217 | No. of pages: 4 | Language: English | Topics: Health | Tags: child health, COVID-19, immunization
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UNICEF Innocenti's Children and COVID-19 Library is a database collecting research from around the world on COVID-19 and its impacts on children and adolescents.

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COVID-19 & Children: Rapid Research Response

UNICEF Innocenti is mobilizing a rapid research response in line with UNICEF’s global response to the COVID-19 crisis. The initiatives we’ve begun will provide the broad range of evidence needed to inform our work to scale up rapid assessment, develop urgent mitigating strategies in programming and advocacy, and preparation of interventions to respond to the medium and longer-term consequences of the COVID-19 crisis. The research projects cover a rapid review of evidence, education analysis, and social and economic policies.