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Widespread flu activity overshadows holiday season
News you can use for the New Year
Dec 28, 2025
123
9
22
CDC data interrupted, so we went state by state
A look at Covid-19, flu and RSV trends in each state
Oct 4, 2025
•
Caitlin Rivers
147
31
22
A routine I refuse to pass on
Mass shootings, public health, and policy solutions
Aug 21, 2025
•
Caitlin Rivers
183
14
18
Where things stand on fall vaccines
Everything I could find about 2025 flu, COVID-19, and RSV vaccines
Aug 19, 2025
•
Caitlin Rivers
118
34
24
Three Years In
What's changed, what hasn't, and looking ahead
Jul 26, 2025
•
Caitlin Rivers
107
24
5
Most Popular
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Outbreak Outlook - National - Jan 27
Jan 27, 2025
513
26
87
Covid-19 surge builds momentum
Aug 10, 2025
93
25
10
Flu spikes
Feb 3, 2025
245
21
54
Outbreak Outlook - National - Feb 10
Feb 10, 2025
265
11
49
Latest
Top
Discussions
Vaccines are popular, actually
I have a new article in the New York Times today challenging an under-appreciated point about America's vaccine debate.
Feb 16, 2025
•
Caitlin Rivers
203
21
40
Crisis Averted
I wrote a book on the hidden science of fighting outbreaks
May 21, 2024
•
Caitlin Rivers
131
26
4
Outbreak Outlook - National - Jan 11
Flu remains very high, but some signs of improvement. Meanwhile, Covid-19 activity is rising.
Jan 11
66
2
14
Updated flu report, national edition
A second look at the latest data on this record season
Jan 7
•
Caitlin Rivers
78
8
8
Outbreak Outlook - National - Jan 4
Flu very high, Covid-19 and RSV rising
Jan 4
85
19
16
Outbreak Outlook - National - Dec 22
Influenza continues its steep ascent. Covid-19 and RSV remain at low levels.
Dec 22, 2025
74
13
8
Outbreak Outlook - National - Dec 14
More flu, covid-19 begins to rise, and RSV also continues its upward trend.
Dec 14, 2025
71
5
6
See all
Force of Infection
Weekly updates on what's going around. Tracking COVID-19, influenza, RSV, food recalls, and more. Helpful for anyone looking to stay well.
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Force of Infection
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