Influenza (flu) can cause mild to severe illness, and at times can lead to death. Flu is different from a cold. Flu usually comes on suddenly. People who have flu often feel some or all of these symptoms:
fever* or feeling feverish/chills
cough
sore throat
runny or stuffy nose
muscle or body aches
headaches
fatigue (tiredness)
some people may have vomiting and diarrhea, though this is more common in children than adults.
*It’s important to note that not everyone with flu will have a fever.
The American food supply is among the safest in the world, but people can still get food poisoning by eating contaminated foods. Some food poisoning is caused by antibiotic-resistant bacteria. Symptoms of infection with antibiotic-resistant bacteria are like other food poisoning symptoms, which can be mild to life-threatening and include diarrhea, nausea, and vomiting.
Pneumonia, an infection of the lungs, needlessly affects millions of people worldwide each year. Pneumonia can often be prevented and can usually be treated.
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COVID-19 in the U.S.
Cases, Data, and Surveillance
Find maps and charts to track cases, deaths, and other trends of COVID-19 at the local, state, and national levels.
View CDC’s COVID Data Tracker Vaccinations tab to track distribution of COVID-19 vaccines in your state.
