Here are a few ways to rewrite the title in a formal tone, depending on your focus:

• Most direct: Rabat Attributes Ceuta Migrant Influx to Misinformation and Human Trafficking
• Most academic: Rabat Alleges Role of Misinformation and Trafficking Networks in Ceuta Migration Surge
• Most concise: Rabat Cites Misinformation and Trafficking as Drivers of Ceuta Migrant Surge

Here are a few options for a formal title, depending on the desired emphasis:

• Family of Twin Falls Shooting Survivor Urges Caution Regarding Misinformation
• Family of Twin Falls Shooting Victim Issues Warning Concerning Misinformation
• Relatives of Twin Falls Shooting Survivor Caution Public Against Spreading Misinformation

Recommendation: The first option is the most balanced and professionally phrased for a news headline or formal report.

Here are a few options for a formal title, depending on the desired emphasis:

• Robert F. Kennedy Jr. Urges Vaccination Against Measles Amidst Current Outbreak
• Robert F. Kennedy Jr. Calls for Childhood Measles Vaccination Following Recent Outbreak
• Robert F. Kennedy Jr. Advises Families to Vaccinate Against Measles Amid Rising Cases

Recommendation: The first option is the most concise and adheres best to formal journalistic standards.