What public health alerts cover
– Infectious disease outbreaks: notifications about rising cases, new variants, or vaccination and testing recommendations.
– Environmental hazards: air quality warnings, chemical spills, radiation releases, and unsafe swimming advisories.
– Drinking water and boil water advisories: notice that tap water may be contaminated and steps to make water safe.
– Food and product recalls: alerts about contaminated foods, unsafe medications, or consumer products.
– Natural disasters and extreme weather: heat waves, floods, wildfires, and evacuations that carry public health implications.
How alerts reach the public
Alerts are pushed through multiple channels to reach as many people as possible: wireless emergency alerts (text-like messages sent to mobile phones), Emergency Alert System broadcasts, local health department emails and SMS, social media feeds of trusted agencies, community sirens, and reverse-911 calls. Many people also get push notifications from apps managed by national emergency agencies or local health departments.
Practical steps to take when you receive an alert
– Read the message carefully.
Alerts often include specific, actionable guidance (e.g., boil water, evacuate, shelter in place).
– Verify the source. Cross-check with your local health department, state or national public health agency websites, or official social media handles to avoid misinformation.
– Follow instructions immediately for life-safety actions like evacuation, sheltering, or seeking medical attention.
– For boil water advisories: boil water for at least one minute (or follow local guidance), use bottled water if available, and avoid ice or foods washed in tap water until the advisory is lifted.
– For food recalls: check product codes and lot numbers, stop using the product, return it where possible, and monitor for symptoms listed in the recall notice.
– For suspected chemical or radiation exposure: move upwind/uphill or to higher ground if directed, avoid eating or drinking potentially contaminated food, and seek medical attention.
Prepare ahead to make alerts more effective
– Sign up for local alerts and national emergency notifications so messages go directly to your phone or inbox.
– Maintain a basic emergency kit: water, nonperishable food, battery-powered radio, flashlight, medications, important documents, and a first-aid kit. Tailor kits for infants, older adults, and pets.
– Make a family communication and evacuation plan, and practice it regularly.
– Keep medications and medical supplies current and know alternative ways to access care (telehealth, urgent care, community clinics).
Protect vulnerable populations
Children, older adults, people with chronic conditions, and those without access to transportation face greater risks during public health events. Check in with neighbors, coordinate with local community groups, and ensure accessible formats of alerts (language translation, large print, and audio) are available when needed.
Avoid spreading misinformation
Only share information from official sources, and avoid forwarding unverified posts. If you see questionable content, verify it with your local health department or national public health agency before sharing.
Staying informed and prepared reduces panic and improves outcomes when alerts arrive. Sign up for official notifications, assemble essential supplies, and know the steps to take for the most common types of public health alerts so you and your community can respond quickly and safely.