HOME >> BIOLOGY >> NEWS
Researchers report definitive evidence that HIV-AIDS is not from oral polio vaccine

HIV-AIDS did not come from oral polio vaccine contaminated with chimpanzee virus, reports a research team led by a University of Arizona evolutionary biologist.

Belief that polio vaccine can spread AIDS has hampered the World Health Organization's efforts to stamp out polio. In Nigeria, several states recently banned use of the vaccine. Nigeria now has the highest number of polio cases in the world.

Although scientists agree that HIV comes from a chimpanzee simian immunodeficiency virus (SIV) that infected humans, when and how SIV jumped the species barrier has not been definitively determined.

The researchers found and sequenced genetic material from a new strain of SIV present in wild chimpanzees in the Kisangani region of the Democratic Republic of Congo (DRC).

The new SIV is not the one from which HIV-1, the virus responsible for the human AIDS pandemic, originated. The research shows that the new SIV resides on a different part of the SIV family tree.

One theory about the origin of HIV-AIDS alleges that tissues from chimps from the vicinity of Kisangani were used in preparing oral polio vaccine, thus letting the vaccine be contaminated by SIV.

"We found a new simian immunodeficiency virus, SIVcpzDRC1," said Michael Worobey, an assistant professor of ecology and evolutionary biology at the University of Arizona in Tucson. "It's a new variant of SIV, and it's not closely related to HIV-1." Finding the new strain of SIV in chimpanzees near Kisangani shows that HIV-1 did not originate from polio vaccines that were tested in that area in the 1950s.

The team's research article will be published in the April 22 issue of the journal Nature.

Worobey's coauthors are Beatrice H. Hahn, George M. Shaw, Mario L. Santiago, and Brandon F. Keele of the University of Alabama in Birmingham, Jean-Bosco N. Ndjango, Bernard L. Labama and Benot D. Dhed'a of the University of Kisangani in the Democratic Republic of Congo,
'"/>

Contact: Michael Worobey
worobey@email.arizona.edu
520-626-3456
University of Arizona
21-Apr-2004


Page: 1 2 3

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Researchers find color sensitive atomic switch in bacteria
3. Researchers identify protein promoting vascular tumor growth
4. Researchers devise potent new tools to curb ivory poaching
5. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
6. Researchers ID chlorophyll-regulating gene
7. Researchers develop fast track way to discover how cells are regulated
8. Researchers identify distinctive signature for metastatic prostate cancer
9. Researchers report new gene test for isolated cleft lip and palate
10. Researchers discover why mutant gene causes colon cancer
11. Researchers identify the genomes controlling elements

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... CITY, Calif. (PRWEB) , ... July 01, 2020 ... ... biotech company, presented its phase 1a findings of Neihulizumab, a biologic for the ... conference in June 2020. Led by hemato-oncologist Dr. Paul J Martin of the ...
(Date:6/28/2020)... JUPITER, Fla. (PRWEB) , ... June 25, 2020 , ... ... will focus on innovations in accelerated Point of Care Testing solutions (POCT). Check local ... labs. Samples are collected at medical offices and are shipped to labs throughout the ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... 2020 , ... R3 Stem Cell International is now offering patients the opportunity ... cells total, patients may choose which extremities they would like treated. , Several studies ... Disord. 2016). At R3 International, umbilical cord tissue is obtained from a lab with ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... up to three different materials for use with CRM, neurostimulation, vascular, and related ... materials to meet specific design requirements, performance, and cost criteria; especially where solid ...
(Date:7/31/2020)... ... July 29, 2020 , ... The ... radiation centers in 16 countries, has reached its 20th anniversary of worldwide use. ... routine use at top universities including University of Pennsylvania, University of Michigan, University ...
(Date:7/18/2020)... ... 2020 , ... After research model surgery and catheter implantation, the long journey ... the beginning of a successful study, while protecting and accessing the catheter or device ... of Surgery from Envigo in a live webinar on Wednesday, ...
Breaking Biology Technology:
Cached News: