In a recent study posted to the medRxiv* preprint server, researchers examined sample collection practices, epidemiological characteristics, and cycle threshold (Ct) values for polymerase chain ...

While the Delta variant of Covid-19 continues to swirl, many travel companies are cautiously churning back to business, albeit with modified protocols. Cruises are no exception, and Viking enlisted ...

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test using one of my rapid home molecular tests. It was a courtesy—he felt perfectly ...

The CDC in July announced its intent to withdraw an emergency use request for a protocol for PCR testing for COVID-19. The withdrawal would become effective Dec. 31, 2021. But that was because of the ...

COVID-19 is commonly diagnosed by quantitative fluorescence real-time reverse transcriptase-polymerase chain reaction (qRT-PCR) (1, 2). The test is the sequential action of two enzymes–an ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

Polymerase chain reaction (PCR) test kits for COVID-19 use what’s known as gene cloning – not reproductive cloning – to detect the presence or absence of the SARS-CoV-2 virus, but social media posts ...

The Bahamian government has announced updated entry requirements, suspending the mandatory RT-PCR testing for vaccinated travelers, which was scheduled to take effect on January 7, 2022. Vaccinated ...

After the Centers for Disease Control and Prevention ended its COVID-19 cruise ship program last month, many cruise lines changed their health and safety protocols and dropped some testing ...