インフルエンザはどのようにして発症するのでしょうか?

How Long Is a Virus Contagious?

CDC says there is a rise in cases of common cold virus called RSV

Know the common symptoms of flu

結核について知っておくべき5つのこと

Cold, flu, COVID-19, RSV or norovirus? Here’s how to spot the difference

At least 53,000 currently hospitalized with flu: CDC

Sick with norovirus?

CDC: High Flu Rates In The South

What to do when you catch the flu

CDC warns of respiratory virus affecting children and adults

Delta Variant Is As Contagious As Chickenpox, CDC Document Says

CDC warns about respiratory syncytial virus

The Flu Can Be Very Serious

CDC finds Delta variant more contagious than common cold

CDC Says Deadly Flu Season Getting Worse

Why Flu Vaccination Matters: Personal Stories from Families

What to know about CDC's updated COVID-19 guidelines

CDC: Flu Season Far From Over

Flu symptoms versus cold symptoms