Here's what parents should know about the new changes to the childhood vaccine schedule.

Pediatricians told ABC News they are urging parents to still vaccinate their children despite changing federal guidance

Medical contributor Dr. John Brownstein says the flu shot can still provide “important protection against hospitalization and death and severe illness.”

Even without a perfect match, public health experts say the flu vaccine offers important protection against serious complications.

Dr. Richard Besser, CEO of the Robert Wood Johnson Foundation, says the elimination of vaccines from the recommended column will "put our children in harm's way."

ABC News medical contributor Dr. Alok Patel on what parents can do to get the information they need.

In an unprecedented move, the CDC announced it's changing the childhood immunization schedule – effective immediately.

The CDC announced on Monday it is changing the childhood immunization schedule, removing the universal recommendation for multiple shots.

The team found that the percentage of children who received the MMR vaccine on time changed over the study period, increasing from 75.6% in 2018 to 79.9% in 2021, and then falling to 76.9% in 2024.

ABC News medical correspondent Dr. Darien Sutton breaks down what to know about hepatitis B after a CDC vaccine panel voted to drop the universal birth-dose recommendation.

The Centers for Disease Control and Prevention's vaccine advisory committee voted 8-3 on Friday to remove the universal recommendation for the hepatitis B vaccine at birth.

The CDC’s vaccine advisory panel is set to meet Friday to vote on changing the recommendations for vaccine scheduling that could affect children’s vaccinations.

A CDC panel voted to drop the universal recommendation on the hepatitis B vaccine.

The move would be a major reversal of a public health policy that has been in place for more than 30 years.

The vote ends over 30 years of routine vaccinations that doctors say was key to eliminating child infections.

Dr. Paul Offit, director of the Vaccine Education Center at Children's Hospital of Philadelphia, discusses the CDC potential decision to change recommendations on hepatitis B shot given to newborns.

The Centers for Disease Control and Prevention's vaccine advisory committee voted 8-3 on Friday to remove the universal recommendation for the

ABC News medical contributor Dr. Alok Patel discusses the CDC advisory committee's expected vote on whether newborns should get the hepatitis B shot.

Dr. Richard Besser, former CDC acting director, said, "I think we will see more hepatitis B cases. It's, you know, it's a very challenging disease. The virus itself is very contagious."

ABC News' Stephanie Ramos spoke with former CDC Chief Medical Officer Dr. Debra Houry about an advisory panel's vote to stop recommending universal hepatitis B vaccinations at birth.

Former CDC director Dr. Tom Frieden joins ABC News Live to talk about an advisory panel's vote to stop recommending universal hepatitis B vaccinations at birth.

The CDC's vaccine advisory committee voted on Friday to remove the universal recommendation for the hepatitis B vaccine at birth.

The CDC's vaccine advisory committee is set to meet Thursday and Friday to discuss the childhood vaccine schedule, adjuvants and contaminants, and the hepatitis B shot.

The CDC's vaccine advisory committee could vote this week to change hepatitis B vaccine recommendations for children. Here's what to know about the shot.

The top vaccine chief at the Food and Drug Administration sent out a memo saying the FDA will seek a stricter review and approval protocol for vaccine trials. 

ABC News' Medical Correspondent Dr. Darien Sutton reports on the CDC's updated language on vaccines and autism requested by Health and Human Secretary Robert F. Kennedy Jr.

Dr. Debra Houry, who resigned from her position as chief medical officer of the CDC in 2025, called the change on the CDC’s website "disturbing."

The CDC updated its webpage on autism and vaccines on Wednesday, promoting the debunked theory that the developmental disorder is caused by shots.

Florida announced plans to end mandatory vaccination. Now scientists are assessing which of several diseases deadly to children are likely to make a resurgence and when.

Here's what to know about the COVID-19, flu and RSV vaccines available for respiratory virus season including who is eligible and where to get them.

The outbreak has grown to at least eight measles cases, officials said.

The CDC updated its immunization schedule on Monday, dropping universal COVID vaccine recommendations and splitting up the MMRV shot.

Scientists say that Trump distorted facts on vaccines, Tylenol and autism during a news conference in which he encouraged pregnant women not to take the drug.

Dr. Jessica Shepherd, chief medical officer for Hers, joins ABC News Live to discuss new vaccine recommendations.

ABC News' Medical Correspondent Dr. Darien Sutton breaks down the latest proposed recommendations for the MMRV vaccine and COVID vaccine by the CDC vaccine advisory committee.

President of American Academy of Pediatrics Dr. Susan Kressly breaks down the latest recommendations from the CDC vaccine advisory committee.

The CDC's new vaccine advisers have voted to drop the recommendation on COVID-19 shots, saying it should be a personal choice.

The Advisory Committee on Immunization Practices, called ACIP, on Friday voted to abandon its recommendation for the COVID-19 vaccine.

The CDC's vaccine advisory panel voted Friday to abandon its recommendation for the COVID-19 vaccine, with the committee unanimously voting to recommend that Americans make it a personal choice.

An influential group of advisers for the CDC voted Thursday to narrow existing recommendations for the combined MMRV shot that protects against measles, mumps, rubella and chickenpox.

Leading pediatric group calls committee “illegitimate.”

Dr. Chari Cohen, president of the Hepatitis B Foundation, breaks down why the "safety net" of the birth dose of the vaccine is so important.

The CDC vaccine advisory committee, called ACIP, is weighing new restrictions on existing recommendations for the combined MMRV shot to protect against measles, mumps, rubella and chickenpox.

Dr. Demetre Daskalakis, the former CDC chief of vaccines and respiratory diseases, talks about HHS's vaccine advisory committee two-day meeting to discuss vaccine policy.

West Coast states issue unified vaccine recommendations, as California enacts a law to base the state immunization guidance on independent medical organizations.

A critical CDC vaccine panel is set for today, weighing recommendations on shots from measles to COVID. This comes after the former CDC director testified at Congress.

Susan Monarez testified that Health Secretary Robert F. Kennedy Jr. fired her after 29 days on the job for refusing his order to pre-approve new child vaccine recommendations before they were written.

Susan Monarez, the former CDC director, said Health Secretary Robert F. Kennedy Jr. told her changes to the childhood vaccine schedule were coming in September.

In one instance, Sen. Paul replied to one of Monarez's answers, "That's a ridiculous answer."

The parents choosing to skip or delay vaccines for their children are more likely to home-school their children, be white and very religious or identify as Republican, according to a new poll.