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 ...

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) 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 ...

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 ...

PCR is a mainstay in diagnostics, but whether a sample is collected at a clinic or at home, such tests require sending a sample to a lab and then waiting for results. A new FDA authorized ...

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 ...

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 ...