World Children's Day is an international holiday established by the United Nations in 1954 to enhance the cohesion of children around the world, raise children's awareness and improve children's welfare. World Children’s Day takes place annually on 20 November. The primary goals of this event are to increase awareness of various types of pediatric diseases, advocate for scientific advancement by addressing unmet needs, and promote global collaboration to address challenges faced by pediatric patients and the medical community in timely diagnosis, optimal treatment and support.

In celebration of World Children’s Day 2023, Children (ISSN: 2227-9067) has curated a collection of open access scholarly research studies focused on pediatric disease. Our intention is to disseminate new scientific knowledge to the world on this significant occasion.

1. “The Impact of COVID-19 School Closure on Child and Adolescent Health: A Rapid Systematic Review”
by Sonia Chaabane, Sathyanarayanan Doraiswamy, Karima Chaabna, Ravinder Mamtani and Sohaila Cheema
Children 2021, 8(5), 415; https://doi.org/10.3390/children8050415  
Available online: https://www.mdpi.com/2227-9067/8/5/415

2. “Oralbiotica/Oralbiotics: The Impact of Oral Microbiota on Dental Health and Demineralization: A Systematic Review of the Literature”
by Alessio Danilo Inchingolo, Giuseppina Malcangi, Alexandra Semjonova, Angelo Michele Inchingolo, Assunta Patano, Giovanni Coloccia, Sabino Ceci, Grazia Marinelli, Chiara Di Pede, Anna Maria Ciocia et al.
Children 2022, 9(7), 1014; https://doi.org/10.3390/children9071014  
Available online: https://www.mdpi.com/2227-9067/9/7/1014

3. “Skin Disease in Children: Effects on Quality of Life, Stigmatization, Bullying, and Suicide Risk in Pediatric Acne, Atopic Dermatitis, and Psoriasis Patients”
by Katherine A. Kelly, Esther A. Balogh, Sebastian G. Kaplan and Steven R. Feldman
Children 2021, 8(11), 1057; https://doi.org/10.3390/children8111057   
Available online: https://www.mdpi.com/2227-9067/8/11/1057

4. “Neonatal Multisystem Inflammatory Syndrome (MIS-N) Associated with Prenatal Maternal SARS-CoV-2: A Case Series”
by Ravindra Pawar, Vijay Gavade, Nivedita Patil, Vijay Mali, Amol Girwalkar, Vyankatesh Tarkasband, Sanjog Loya, Amit Chavan, Narendra Nanivadekar, Rahul Shinde et al.
Children 2021, 8(7), 572; https://doi.org/10.3390/children8070572
Available online: https://www.mdpi.com/2227-9067/8/7/572

5. “Children on the Autism Spectrum and the Use of Virtual Reality for Supporting Social Skills”
by Alessandro Frolli, Giulia Savarese, Francesca Di Carmine, Antonia Bosco, Emilio Saviano, Angelo Rega, Marco Carotenuto and Maria Carla Ricci
Children 2022, 9(2), 181; https://doi.org/10.3390/children9020181   
Available online: https://www.mdpi.com/2227-9067/9/2/181

6. “Effectiveness of Virtual Reality-Based Interventions for Children and Adolescents with ADHD: A Systematic Review and Meta-Analysis”
by Dulce Romero-Ayuso, Abel Toledano-González, María del Carmen Rodríguez-Martínez, Palma Arroyo-Castillo, José Matías Triviño-Juárez, Pascual González, Patrocinio Ariza-Vega, Antonio Del Pino González and Antonio Segura-Fragoso
Children 2021, 8(2), 70; https://doi.org/10.3390/children8020070  
Available online: https://www.mdpi.com/2227-9067/8/2/70

7. “’You Can’t Go to the Park, You Can’t Go Here, You Can’t Go There’: Exploring Parental Experiences of COVID-19 and Its Impact on Their Children’s Movement Behaviours”
by Negin A. Riazi, Kelly Wunderlich, Madelaine Gierc, Mariana Brussoni, Sarah A. Moore, Mark S. Tremblay and Guy Faulkner
Children 2021, 8(3), 219; https://doi.org/10.3390/children8030219  
Available online: https://www.mdpi.com/2227-9067/8/3/219

8. “Play Behaviors in Children during the COVID-19 Pandemic: A Review of the Literature”
by Anastasia Kourti, Androniki Stavridou, Eleni Panagouli, Theodora Psaltopoulou, Maria Tsolia, Theodoros N. Sergentanis and Artemis Tsitsika
Children 2021, 8(8), 706; https://doi.org/10.3390/children8080706   
Available online: https://www.mdpi.com/2227-9067/8/8/706

9. “Evaluation of Children Caries Risk Factors: A Narrative Review of Nutritional Aspects, Oral Hygiene Habits, and Bacterial Alterations”
by Andrea Butera, Carolina Maiorani, Annalaura Morandini, Manuela Simonini, Stefania Morittu, Julia Trombini and Andrea Scribante
Children 2022, 9(2), 262; https://doi.org/10.3390/children9020262    
Available online: https://www.mdpi.com/2227-9067/9/2/262

10. “A Critical Review on the Complex Interplay between Social Determinants of Health and Maternal and Infant Mortality”
by Rada K. Dagher and Deborah E. Linares
Children 2022, 9(3), 394; https://doi.org/10.3390/children9030394
Available online: https://www.mdpi.com/2227-9067/9/3/394