Vaccine for AIDS shows promise in early tests

Associated Press

SEATTLE — The first preliminary human testing of a highly anticipated new kind of AIDS vaccine offers tantalizing hints it may ultimately protect against the killer virus.

The study of Merck &Co.’s experimental vaccine is perhaps the most closely watched experiment in all of AIDS research. The approach seems highly effective in monkeys, and many believe it or something similar is the best bet for a shot that could slow the worldwide epidemic, which has already killed 20 million people and infected 40 million more.

Even though the vaccine is only part-way through first-stage safety testing, Merck’s Emilio Emini was asked to update researchers in an address Tuesday at the 9th Annual Retrovirus Conference in Seattle.

His bottom line: At this stage, the vaccine appears to trigger the same immune system response in people that it does in newly immunized monkeys, though the volunteers have not been put to the crucial challenge of exposure to HIV.

"We are encouraged," said Emini, head of Merck’s AIDS vaccine program. "Obviously, the big question is how effective this will be in preventing or mitigating infection. That will have to wait until we get into long-term studies."

If all goes perfectly, he said, it will be at least five years and probably longer before the vaccine reaches general use.

However, even if the vaccine works, many experts doubt it will stop infection cold the way most vaccines do. Instead, the hope is to fortify the body’s immune defenses to hold the virus in check and prevent disease for many years, perhaps even a lifetime.

Dr. Robert Schooley, infectious-disease chief at the University of Colorado, said the vaccine’s safety and immune response are "what many of us hoped we’d be seeing when this trial started," though he cautioned that it is still "a long way from here to giving a vaccine that could protect people."

Copyright ©2002 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Customers enter and exit the Costco on Dec. 2, 2022, in Lake Stevens. (Olivia Vanni / The Herald)
Costco stores could be impacted by looming truck driver strike threat

Truck drivers who deliver groceries and produce to Costco warehouses… Continue reading

Two Washington State ferries pass along the route between Mukilteo and Clinton as scuba divers swim near the shore Sunday, Oct. 22, 2023, in Mukilteo, Washington. (Ryan Berry / The Herald)
Ferry system increases ridership by a half million in 2024

Edmonds-Kingston route remains second-busiest route in the system.

A view of one of the potential locations of the new Aquasox stadium on Monday, Feb. 26, 2024 in Everett, Washington. The site sits between Hewitt Avenue, Broadway, Pacific Avenue and the railroad. (Olivia Vanni / The Herald)
Initial prep work for AquaSox stadium to start, with $200k price tag

The temporary agreement allows some surveying and design work as the city negotiates contracts with designers and builders.

The Joann Fabric and Crafts store at 7601 Evergreen Way, Everett, is one of three stores in Snohomish County that will close as part of the retailer’s larger plan to shutter more than half of its stores nationwide. (Aaron Kennedy / The Herald)
Joann store closure plan includes Everett, Arlington, Lynnwood locations

The retail giant filed a motion in court to close approximately 500 stores in the U.S.

Lynnwood
Lynnwood police: 1 suspect in custody, 1 at large after attempted carjacking

Beverly Elementary School went into a precautionary lockdown Thursday afternoon. Numerous officers continue to search for the second suspect.

Robin Cain with 50 of her marathon medals hanging on a display board she made with her father on Thursday, Jan. 2, 2025 in Lake Stevens, Washington. (Olivia Vanni / The Herald)
Running a marathon is hard. She ran one in every state.

Robin Cain, of Lake Stevens, is one of only a few thousand people to ever achieve the feat.

People line up to grab food at the Everett Recovery Cafe on Wednesday, Dec. 4, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
Coffee, meals and compassion are free at the Everett Recovery Cafe

The free, membership-based day center offers free coffee and meals and more importantly, camaraderie and recovery support.

Devani Padron, left, Daisy Ramos perform during dance class at Mari's Place Monday afternoon in Everett on July 13, 2016. (Kevin Clark / The Herald)
Mari’s Place helps children build confidence and design a better future

The Everett-based nonprofit offers free and low-cost classes in art, music, theater and dance for children ages 5 to 14.

The Everett Wastewater Treatment Plant along the Snohomish River on Thursday, June 16, 2022 in Everett, Washington. (Olivia Vanni / The Herald)
Everett water, sewer rates could jump 43% by 2028

The rate hikes would pay for improvements to the city’s sewer infrastructure.

The bond funded new track and field at Northshore Middle School on Thursday, Oct. 24, 2024 in Bothell, Washington. (Courtesy of Northshore School District)
Northshore School District bond improvements underway

The $425 million bond is funding new track and field complexes, playgrounds and phase one of two school replacements.

Candidates announce campaigns for Everett city council seat

Ryan Crowther, founder of the Everett Music Initiative, will challenge incumbent Paula Rhyne for the District 2 seat.

Lynnwood City Council Vice President Julieta Crosby speaks during a Lynnwood City Council meeting on Wednesday, Nov. 20, 2024. (Olivia Vanni / The Herald)
Lynnwood picks top eight candidates to replace former council VP

The City Council will make its final decision Feb. 20 after interview process.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.