Anxiety over the Zika virus is growing as the Olympic Games in Rio de Janeiro approach. To better diagnose and track the disease, scientists are now reporting in ACS’ journal Analytical Chemistry a new $2 test that in the lab can accurately detect low levels of the virus in saliva.
The World Health Organization (WHO) recently announced that there was no need to postpone or move the Olympics due to Zika’s presence, but concern over the virus’ spread and its link to serious birth defects is far from allayed. Public health experts debate whether WHO made the right call. But while the discussion continues, scientists are working on new tools to help manage the outbreak. Current gold-standard tests to detect the virus require expensive lab equipment and trained personnel. Low-cost diagnostic methods have been reported but can’t detect low levels of the disease or don’t distinguish between Zika and similar viruses such as dengue. Changchun Liu and colleagues wanted to design a rapid, low-cost, and more reliable point-of-care detection test.
To ensure their system would be highly selective for Zika without confusing it with similar viruses, the researchers looked for and found a stretch of genetic code that is nearly identical for 19 different strains of the Zika virus infecting people in the Americas but not in other pathogens. Then, with materials costing $2 per test, they developed a diagnostic system, which only requires the addition of water to operate. If the Zika-specific genetic sequence is in a saliva sample, a dye within the system will turn blue within 40 minutes. The test even works if low levels of the sequence are present.
The Latest on: Zika test
via Google News
The Latest on: Zika test
- Isolation of Zika Virus from Febrile Patient, Indonesiaon October 12, 2021 at 1:28 am
Until recently, most evidence for Zika virus infection in Asia, including in Indonesia ( 5 ), has been serologic, but recent virus strains isolated from persons in Thailand ( 6 ), the Philippines ( 7 ...
- Zika Virus Infection, Philippines, 2012on October 11, 2021 at 11:19 pm
The virus caused only sporadic infections until 2007, when a large outbreak occurred on Yap, an island in the Federated States of Micronesia ( 6 ). In October 2013, ZIKV was detected in French ...
- Families struggling with the legacy of Zika feel abandoned by scienceon October 7, 2021 at 2:05 pm
Some families of children born with Zika congenital syndrome never saw the results of the tests and research they participated in. Now they distrust scientists.
- To Study Zika, They Offered Their Kids. Then They Were Forgotten.on October 6, 2021 at 9:21 am
"It's like we were lab rats. They come in nicely, collect information, collect exams on the child, and in the end we don't know of any results." ...
- Australian scientists kill buzz for mosquitoes with breakthrough techniqueon October 5, 2021 at 1:57 pm
The CSIRO has discovered a sterilisation technique to suppress and eradicate populations of mosquitoes carrying dengue, yellow fever and Zika.
- After valley fever rips through Arizona breeding colony, questions are raised about monkey researchon October 5, 2021 at 11:17 am
A monkey breeding facility in Arizona has been hit hard by valley fever. Monkeys have died and millions of dollars in research is in jeopardy.
- Performance of 2 Commercial Serologic Tests for Diagnosing Zika Virus Infectionon October 4, 2021 at 5:00 pm
The 199 samples used to evaluate the performance of the serologic kits came from patients with a mean + SD age of 36 + 16 years (range 1–74 years; IQR 27–46 years). This panel was composed of ...
- CSIRO makes major breakthrough in fight against killer mosquito diseaseson October 4, 2021 at 12:35 pm
He described the other sources of those diseases as only “secondary vectors”. He believed the wolbachia bacteria approach could also be used to reduce populations of other mosquito species responsible ...
- Scientists successfully stop dengue spread through mosquitoeson October 4, 2021 at 12:30 am
Scientists have shown the success of a method of suppressing the population of mosquitoes which spread tropical diseases like dengue fever, leading to hopes of halting the spread of the deadly ...
- Health Minister inspects screening for Nipah, Zika infection at Kumulion October 3, 2021 at 6:52 am
Health Minister M. Subramanian on Sunday inspected screening for Nipah and, Zika viral infection of passengers coming into Theni district from Kerala by a health team at Kumuli. Accompanied by Theni C ...
via Bing News