![Ashish K. Jha, MD, MPH on X: "There is very short pre-contagious period Where folks are PCR + but rapid antigen negative Labeled A There is the contagious period: PCR + and Ashish K. Jha, MD, MPH on X: "There is very short pre-contagious period Where folks are PCR + but rapid antigen negative Labeled A There is the contagious period: PCR + and](https://pbs.twimg.com/media/FHixbJMWQAImb6N.jpg)
Ashish K. Jha, MD, MPH on X: "There is very short pre-contagious period Where folks are PCR + but rapid antigen negative Labeled A There is the contagious period: PCR + and
![How contagious is Delta? How long are you infectious? Is it more deadly? A quick guide to the latest science - Health Check How contagious is Delta? How long are you infectious? Is it more deadly? A quick guide to the latest science - Health Check](https://i0.wp.com/images.theconversation.com/files/423286/original/file-20210927-17-1pk7d7a.png?ssl=1)
How contagious is Delta? How long are you infectious? Is it more deadly? A quick guide to the latest science - Health Check
How long does Omicron last? When you are most contagious with Covid variant and how the symptoms compare
![Omicron infections contagious for at least 6 days; Takeda drug shows promise as COVID treatment | Reuters Omicron infections contagious for at least 6 days; Takeda drug shows promise as COVID treatment | Reuters](https://www.reuters.com/resizer/v2/https%3A%2F%2Fcloudfront-us-east-2.images.arcpublishing.com%2Freuters%2FHQ6GUDJLPRNZBNAZSUQNOAHZOQ.jpg?auth=cbe7775b96972593145eab49bc3b3fccc0e9c33c4f3be2ea4c3c52cc522970ba&width=1920&height=1005&smart=true)
Omicron infections contagious for at least 6 days; Takeda drug shows promise as COVID treatment | Reuters
![Michael Mina on X: "IMPORTANT: RAPID TESTS DO WORK WITH OMICRON "But why are some people staying negative in the first days they have symptoms??" This is expected. Symptoms don't = contagious Michael Mina on X: "IMPORTANT: RAPID TESTS DO WORK WITH OMICRON "But why are some people staying negative in the first days they have symptoms??" This is expected. Symptoms don't = contagious](https://pbs.twimg.com/media/FG2uYyYXIAAaJL5.jpg:large)
Michael Mina on X: "IMPORTANT: RAPID TESTS DO WORK WITH OMICRON "But why are some people staying negative in the first days they have symptoms??" This is expected. Symptoms don't = contagious
![SARS-CoV-2 B.1.1.529 (Omicron) Variant Transmission Within Households — Four U.S. Jurisdictions, November 2021–February 2022 | MMWR SARS-CoV-2 B.1.1.529 (Omicron) Variant Transmission Within Households — Four U.S. Jurisdictions, November 2021–February 2022 | MMWR](https://www.cdc.gov/mmwr/volumes/71/wr/social-media/mm7109e1_TransmissionWithinHouseholds_IMAGE_25Feb22_1200x627.jpg?_=65787)
SARS-CoV-2 B.1.1.529 (Omicron) Variant Transmission Within Households — Four U.S. Jurisdictions, November 2021–February 2022 | MMWR
![Omicron - Incubation And Contagious Period (Vaccinated, Unvaccinated, Previously Infected) - YouTube Omicron - Incubation And Contagious Period (Vaccinated, Unvaccinated, Previously Infected) - YouTube](https://i.ytimg.com/vi/O5gldSCTkmw/maxresdefault.jpg)