Term:Negative

Normative

Encyclopaedic information

Persons who are vaccinated or who have had a recent negative COVID-19 test result and persons who have recovered from COVID-19 in the previous six months seem to have a reduced risk of infecting people with SARS-CoV-2, according to current and still evolving scientific evidence.

Source: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32021R0953

Examples

Consequently, a single negative swab from the upper airway does not rule out SARS-CoV-2 infection and repeated sampling from multiple sites, including the lower airway, will increase diagnostic yield.

Source: https://www.sccm.org/getattachment/Disaster/SSC-COVID19-Critical-Care-Guidelines.pdf

Travelers may need evidence of a recent negative test result to enter some states or countries; such documentation may be an acceptable alternative to quarantine upon arrival.

Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf

Collocations

• negative (test) result
• negative PCR/RT-PCR
• indicating a negative result
• false negative
• negative pressure room

Keyness

>1000

Research

Definition/description

Paediatric patients were discharged after two negnegativeative SARS-CoV-2 PCRs.

Source: https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(20)30236-X/fulltext

Examples

If the first RT-PCR result was negative, the second nasopharyngeal sample of observing patients would be collected on DAY 3 for RT-PCR test again.

Source: https://www.medrxiv.org/content/10.1101/2020.02.13.20022673v1

Twenty patients were finally laboratory confirmed with NCP, among whom 14 patients were positive for the first admission SARS-COV-2 RT-PCR, 3 patients turned to positive in the second test after the first result.

Source: https://www.medrxiv.org/content/10.1101/2020.02.13.20022673v1

Collocations

• false(ly) negative
• to test negative for
• PCR negative
• for testing to be negative
• negative patients

Keyness

>1000

Press

Examples

Self-isolation can be ended after five days at the earliest with a negative test.

Source: https://www.telegraph.co.uk/travel/news/covid-travel-restrictions-news-green-list-update-amber-red/

On the sixth day they must get tested again and if the result is negative, they can end isolation after day seven.

Source: https://www.dailymail.co.uk/news/article-10055677/Covid-19-Australia-NSW-recorded-623-cases-six-deaths.html

Collocations

• negative test
• negative result
• to test negative

Keyness

>1000

Comments

Examples

If they take a PCR test and receive a negative result then what is the problem here?

Source: https://www.dailymail.co.uk/news/article-10278531/British-couple-facing-4-000-hotel-quarantine-bill-return-South-Africa-launch-legal-action.html

Collocations

• negative result
• negative test
• to test negative

Keyness

• negative: >1000
• negative test: 90
• negative result: 812