FDA. US Food and Drug Administration: Coronavirus (COVID-19) update: FDA authorizes Pfizer-BioNTech COVID-19 vaccine for emergency use in adolescents in another important action in fight against pandemic. Available: https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-authorizes-pfizer-biontech-covid-19-vaccine-emergency-use. Accessed June 7th, 2021.
CDC. Centers for Disease Control and Prevention: COVID-19 vaccines for children and teens. Available: https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommendations/adolescents.html. Accessed June 7th, 2021.
Public Health Agency of Canada: National Advisory Committee on Immunization (NACI). Recommendations on the use of COVID-19 Vaccines. Available: https://www.canada.ca/content/dam/phac-aspc/documents/services/immunization/national-advisory-committee-on-immunization-naci/recommendations-use-covid-19-vaccines/recommendations-use-covid-19-vaccines-en.pdf. Accessed June 7th, 2021.
American Academy of Pediatrics: Children and COVID-19: state-level data report. Available: https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/children-and-covid-19-state-level-data-report. Accessed June 7th, 2021.
Updates on Authorization of COVID-19 Vaccines in Teens in North America
- •As of December 2020, the Pfizer-BioNTech COVID-19 vaccine is authorized for use in adolescents and young adults aged 16 years and older and the Moderna vaccine for use in young adults aged 18 years and older. As of February 2021, the Janssen COVID-19 vaccine was authorized for use in young adults aged 18 years and older.
- •In May 2021, Canada was the first country to authorize use of the Pfizer-BioNTech vaccine in adolescents aged 12-15 years.
- •In the United States, the Food and Drug Administration granted EUA for the Pfizer vaccine in adolescents aged 12-15 years on May 4, 2021. On May 12, the Centers for Disease Control and Prevention also endorsed the Pfizer vaccine for 12- to 15-year-old teens.
Gynecologic Concerns in Adolescents
- •COVID-19 vaccines can be used during puberty. Currently there are several routine recommended vaccines during adolescence including those directed against tetanus, diphtheria, pertussis, human papillomavirus, and bacterial meningitis. There is no plausible biological mechanism or evidence to support concerns that puberty or growth would be altered by COVID-19 vaccines.
- •Anecdotal and media reports of irregular menstrual cycles, including skipped periods, prolonged periods, and spotting after COVID-19 vaccines in adult menstruators have been shared, and similar changes in menstrual cycles have been shared after COVID-19 infection. This is not surprising because infections, immune reactions, and fevers are understood to cause short-term, self-limited changes in cycles. However, further studies are needed to verify and characterize these changes in relationship to COVID-19 vaccines. In teens, it is also important to note the natural variability in cycles due to hypothalamic-pituitary-ovary axis maturation and the large range of normal menstrual cycles in the first few years after the onset of menses.5.Stress and weight changes, which have also occurred in many adolescents during the pandemic, can themselves cause these changes in menstrual cycles. Regardless of vaccine use, youth should be encouraged to track their menstrual cycles to become familiar with their own menstrual function and to discuss any concerns about their cycles with their gynecologists, pediatricians, or adolescent medicine physicians or other health care providers.
- •Adolescents and young adults who are using hormonal birth control may continue to do so when considering any of the approved COVID-19 vaccines. In April 2021, the Food and Drug Administration added a warning to the Janssen COVID vaccine's EUA because of the extremely rare occurrence of thrombosis with thrombocytopenia syndrome; approximately 7 of every million doses of Janssen COVID-19 vaccine administered to women aged 18-49 years.6.An association with COVID-19 vaccine-related thrombosis with thrombocytopenia syndrome and hormonal contraceptives has not been found. Accordingly, continuation of hormonal contraceptive use and COVID-19 vaccination is recommended for eligible young persons.
ACOG. Clinical: Vaccinating pregnant and lactating patients against COVID-19. Practice Advisory. Available: https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2020/12/vaccinating-pregnant-and-lactating-patients-against-covid-19. Accessed June 7th, 2021.
- •Although teenage pregnancy rates have declined over the past few decades, the United States has a high adolescent pregnancy rate (57 per 1000 of 15- to 19-year-old teens) compared with other developed countries.7.Pregnancy increases the risks of significant complications from COVID-19 infection. Many US adolescents are at risk for COVID-19 complications of pregnancy, which are preventable by COVID-19 vaccination. The American College of Obstetricians and Gynecologists and the Society of Obstetricians and Gynaecologists of Canada have endorsed vaccinating women against COVID-19 during pregnancy.
Guttmacher Institute: Teen pregnancy rates declined in many countries between the mid-1990s and 2011. Available: https://www.guttmacher.org/news-release/2015/teen-pregnancy-rates-declined-many-countries-between-mid-1990s-and-2011. Accessed June 7th, 2021.
6.,ACOG. Clinical: Vaccinating pregnant and lactating patients against COVID-19. Practice Advisory. Available: https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2020/12/vaccinating-pregnant-and-lactating-patients-against-covid-19. Accessed June 7th, 2021.
8.Society of Obstetricians and Gynaecologists of Canada: SOGC statement on COVID-19 vaccination in pregnancy. Available: https://sogc.org/en/content/featured-news/SOGC_Statement_on_COVID-19_Vaccination_in_Pregnancy.aspx. Accessed June 7th, 2021.
- •Current or future fertility is unlikely to be affected by COVID-19 vaccines in teens because there is no scientific basis for any interaction. The vaccines do not alter a person's DNA or that of their offspring. Several professional societies, including the American College of Obstetricians and Gynecologists, the American Society for Reproductive Medicine, and the Society for Maternal-Fetal Medicine, have issued a joint statement sharing that there is no evidence that the vaccine is associated with declines in fertility.9.The Society of Obstetricians and Gynaecologists of Canada has issued a similar statement.
American Society for Reprodutive Medicine COVID-19 Updates and Resources: ASRM, ACOG, and SMFM issue joint statement: medical experts continue to assert that COVID vaccines do not impact fertility. Available: https://www.asrm.org/news-and-publications/news-and-research/press-releases-and-bulletins/asrm-smfm-acog-issue-joint-statement-medical-experts-continueto-assert-that-covid-vaccines-do-not-impact-fertility/. Accessed June 6th, 2021
8.Society of Obstetricians and Gynaecologists of Canada: SOGC statement on COVID-19 vaccination in pregnancy. Available: https://sogc.org/en/content/featured-news/SOGC_Statement_on_COVID-19_Vaccination_in_Pregnancy.aspx. Accessed June 7th, 2021.
Summary Guidance
- 1.All children, adolescents, and young adults who are vaccine-eligible should be offered their choice of available and approved COVID-19 vaccines.
- 2.There is no reason to delay the COVID 19 vaccine for an adolescent because of their stage of puberty.
- 3.Irregular periods are a common part of adolescence and are part of normal pubertal development. Menstrual cycles of adolescents have a wide normal range and if the vaccine has an effect on cycles, it is likely short-term and self-limited.
- 4.Adolescents and young adults who are sexually active and/or using hormonal or nonhormonal contraceptive methods should be offered the COVID-19 vaccine.
- 5.Pregnant adolescents should be offered the COVID-19 vaccine because they are a group at high risk of COVID complications. A pregnancy test is not indicated before vaccine administration.
- 6.There are no scientific data that demonstrate a link between COVID-19 vaccine and fertility.
References
FDA. US Food and Drug Administration: Coronavirus (COVID-19) update: FDA authorizes Pfizer-BioNTech COVID-19 vaccine for emergency use in adolescents in another important action in fight against pandemic. Available: https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-authorizes-pfizer-biontech-covid-19-vaccine-emergency-use. Accessed June 7th, 2021.
CDC. Centers for Disease Control and Prevention: COVID-19 vaccines for children and teens. Available: https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommendations/adolescents.html. Accessed June 7th, 2021.
Public Health Agency of Canada: National Advisory Committee on Immunization (NACI). Recommendations on the use of COVID-19 Vaccines. Available: https://www.canada.ca/content/dam/phac-aspc/documents/services/immunization/national-advisory-committee-on-immunization-naci/recommendations-use-covid-19-vaccines/recommendations-use-covid-19-vaccines-en.pdf. Accessed June 7th, 2021.
American Academy of Pediatrics: Children and COVID-19: state-level data report. Available: https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/children-and-covid-19-state-level-data-report. Accessed June 7th, 2021.
- menstruation in girls and adolescents: using the menstrual cycle as a vital sign.Obstet Gynecol. 2015; 126: e143
ACOG. Clinical: Vaccinating pregnant and lactating patients against COVID-19. Practice Advisory. Available: https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2020/12/vaccinating-pregnant-and-lactating-patients-against-covid-19. Accessed June 7th, 2021.
Guttmacher Institute: Teen pregnancy rates declined in many countries between the mid-1990s and 2011. Available: https://www.guttmacher.org/news-release/2015/teen-pregnancy-rates-declined-many-countries-between-mid-1990s-and-2011. Accessed June 7th, 2021.
Society of Obstetricians and Gynaecologists of Canada: SOGC statement on COVID-19 vaccination in pregnancy. Available: https://sogc.org/en/content/featured-news/SOGC_Statement_on_COVID-19_Vaccination_in_Pregnancy.aspx. Accessed June 7th, 2021.
American Society for Reprodutive Medicine COVID-19 Updates and Resources: ASRM, ACOG, and SMFM issue joint statement: medical experts continue to assert that COVID vaccines do not impact fertility. Available: https://www.asrm.org/news-and-publications/news-and-research/press-releases-and-bulletins/asrm-smfm-acog-issue-joint-statement-medical-experts-continueto-assert-that-covid-vaccines-do-not-impact-fertility/. Accessed June 6th, 2021