結果 : can someone transmit covid if they test negative
1:37

How long is someone with COVID contagious?

CBS Boston
133,819 回視聴 - 3 年前
1:37

COVID-19: When are you no longer contagious after testing positive or experiencing symptoms?

WVTM 13 News
78,774 回視聴 - 3 年前
1:24

How long can you test positive after a COVID-19 test?

11Alive
293,721 回視聴 - 3 年前
1:39

How long-COVID is affecting former patients months after they test negative

KENS 5: Your San Antonio News Source
308 回視聴 - 3 年前
32:08

Coronavirus, well people spreading infection

Dr. John Campbell
138,105 回視聴 - 5 年前
0:51

Do you still have to quarantine if you test negative for COVID-19?

FOX54 News Huntsville
762 回視聴 - 4 年前
3:47

Explained | Can asymptomatic patients transmit coronavirus?

moneycontrol
3,664 回視聴 - 5 年前
0:59

How long after I get COVID-19 will I test negative?

Gavi, the Vaccine Alliance
311,213 回視聴 - 3 年前
2:12

VERIFY: Can you test positive for COVID-19 long after you're contagious?

WCNC
20,379 回視聴 - 4 年前
0:54

After someone tests COVID-19 positive, when can they stop self-isolating?

Mount Sinai Health System
16,159 回視聴 - 3 年前
3:07

How many days should you wait to get tested after COVID-19 exposure?

Good Morning America
91,562 回視聴 - 4 年前
1:17

You can test negative for COVID-19 but still have it. Here’s how

PBS NewsHour
130,064 回視聴 - 4 年前
3:29

Coronavirus: Can Pets Carry Covid-19?

Bloomberg News
12,936 回視聴 - 5 年前
0:43

'I'm Now Testing Negative': Greg Abbott Gives Update On COVID-19, Promotes Vaccination

Forbes Breaking News
28,922 回視聴 - 4 年前
3:37

We test a home antibody kit for tracking Covid-19 transmission

nature video
885,832 回視聴 - 5 年前
1:19

‘I am feeling great’: Biden tests negative for Covid after five days of isolation

The Independent
888 回視聴 - 3 年前
0:41

Coronavirus Update: A negative test isn't a pass, doctor explains

KCTV5 News
88 回視聴 - 4 年前
0:53

The SHOCKING Truth About Covid 19 Vaccine And Autoimmune Disease

Dr. Diana Girnita - Rheumatologist OnCall
40,192 回視聴 - 6 か月前
3:40

Why People Test Negative Despite Having Symptoms Of Covid | IndiaSpend l Covid Mutations

IndiaSpend
2,921 回視聴 - 4 年前
0:57

Herpes! How You Get Infected

Institute of Human Anatomy
1,010,196 回視聴 - 2 年前