California residents need to be prepared for many different types of public health emergencies and disasters. Natural disasters such as earthquakes, wildfires and mudslides are all a part of life here in our state. Man-made disasters such as bioterrorism or chemical terrorism are also a fact of life that Californians must be prepared for.


Make sure that you and your family know about the various kinds of disasters that might occur in California and what to do should a particular crisis occur. Know what you can do to protect your health and the health of your family.


Recent Events

This section provides information about recent outbreaks in California as well as other public health threats that are possible.



This section provides you with resources to understand more about the differences among several kinds of flu, and what you can do to prepare for and respond to each.


Bioterrorism Agents

This section features information on common bioterrorism agents and what you need to know – and do – should a bioterrorism event occur.


Chemical Emergencies

Learn more about chemical emergencies that are possible in California and what you need to know and do to protect your family or business.


Radiation Emergencies

Learn more in this section about radiation emergencies and the health risks associated with them. And find out more about what you should do if you see an unattended or suspicious package.


Natural Disasters

Learn more about the health risks associated with various types of natural disasters, including wildfires, mudslides, earthquakes and extreme heat.


Additional Topics

Additional topics in this section include information on isolation and quarantine, which might be necessary for officials to impose during a public health emergency.