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
[google_news title=”” keyword=”Zika test” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Zika test
- Climate change won’t slow the mosquitoes that carry the Zika virus, study sayson February 28, 2024 at 11:59 am
The mosquito species that can carry the Zika virus, as well as dengue fever and the chikungunya virus, was found to evolve quickly to temperature stress, a new study by the University of Florida ...
- Researchers develop a new toolkit of fruit flies to study Zika viruson February 28, 2024 at 11:37 am
"Overall, our work has generated a new experimental paradigm and set of essential tools that researchers can use to test the impact of various Zika proteins and its different strains on host pathways, ...
- Zika virus detected in Singapore neighborhood: 15 cases spark renewed vigilanceon February 26, 2024 at 6:13 am
A residential area in northeast Singapore recorded two Zika cases in May 2023. Infections increased to 15, with five sporadic cases in other zones by mid-June 2023.
- What is Zika and what are the health risks?on February 22, 2024 at 11:55 pm
SINGAPORE: Surveillance has been stepped up in Boon Lay after one Zika case was reported in December, the Ministry of Health (MOH) and National Environment Agency (NEA) said on Thursday (Feb 22).
- Zika virus: Tests reveal high likelihood of transmission at Boon Lay Place, residents asked to be carefulon February 22, 2024 at 10:14 pm
Residents and those working at Boon Lay Place have been asked to take extra precautions against potentially getting the Zika virus after testing found persistent virus signals in the area. The ...
- Zika possibly being transmitted in Boon Lay Place; residents urged to protect themselveson February 22, 2024 at 8:44 pm
Patients should inform their doctors of the location of their residence and workplace, it added. Like the dengue virus, the Zika virus is mainly transmitted by the bite of an infected Aedes mosquito.
- Potential Zika transmission at Boon Lay Place after one case reported, persistent virus signals found in areaon February 22, 2024 at 2:39 pm
The area with potential Zika transmission includes Boon Lay Shopping Centre and Boon Lay Place Market and Food Village.
- Prior zika infection increases risk of subsequent severe dengue and hospitalization, study concludeson February 6, 2024 at 12:31 pm
A study led by Brazilian researchers shows that people who have had zika run a higher risk of subsequently having severe dengue and being hospitalized. The finding is highly relevant to the ...
- How does Zika virus replicate and transmit from mother to fetus?on February 5, 2024 at 4:01 pm
Sydney A. Majowicz et al, Zika virus M protein latches and locks the E protein from transitioning to an immature state after prM cleavage, npj Viruses (2023). DOI: 10.1038/s44298-023-00004-2 ...
- Zika Virus Outbreak on Yap Island, Federated States of Micronesiaon January 31, 2024 at 4:00 pm
Zika virus disease was confirmed by a finding ... with the use of the Rao and Scott correction to the chi-square test. Standard calibration-weighted estimators were used to adjust for nonresponse ...
via Bing News