Potential COVID-19 Vaccines Move Towards Final Testing Phase - Health Archives
  • About Us
  • Disclaimers
  • Contact Us
  • Subscribe
  • Editorial Guidelines
Health Archives
  • Health News
  • Health Benefits
  • Food & Nutrition
No Result
View All Result
Health Archives
  • Health News
  • Health Benefits
  • Food & Nutrition
Subscribe
No Result
View All Result
Health Archives
No Result
View All Result
Home Health News

Potential COVID-19 Vaccines Move Towards Final Testing Phase

Hamna Ayub by Hamna Ayub
July 22, 2020
in Health News
0
Doctor hands holding COVID-19 vaccine and injection
2.4k
VIEWS
Share on FacebookShare on Twitter

Three more potential COVID-19 vaccines have shown an active immune response in healthy people is considered generally safe. The Lancet journal published studies of the Oxford University coronavirus vaccine that is supported by AstraZeneca. Chinese researchers have developed the COVID-19 vaccine undergoing phase 2 trials supported by CanSino Biologics.

The studies published in the journal ‘The Lancet’ suggest the Oxford University coronavirus vaccine is being tested at phase 1 and phase 2 clinical trials in collaboration with AstraZeneca. The coronavirus vaccine is in phase 2 trial of Chinese researchers funded by CanSino Biologics.

The US pharmaceutical company (Pfizer) and German biotechnology company (BioNTech) have the vaccine in phase 1 and 2 clinical trials. The results and analysis of the study are not yet published in peer-review journals and is available on MedRxiv in an online server.

Microbiology professor from Seattle at the University of Washington School of Medicine, Deborah Fuller commented,

“Both groups saw the immune responses that they were hoping to see, and the adverse effects weren’t severe enough to keep them from moving forward.”

Oxford University COVID-19 Vaccine

The Oxford University vaccine activated an immune response with the formation of antibodies in 28 days of vaccination, and within 14 days, the T-cell immune response was induced.

Researchers found that the antibodies lasted for about 56 days, and the participants will be monitored for at least one year to understand the duration of the immune response.

After the first dose of the vaccine, neutralizing antibodies that can nullify the virus was detected in most participants. In contrast, after 28 days, a second booster was given that produced antibodies in all people.

In the plasma of recovered people of COVID-19, the neutralizing antibodies were detected; however, the scientists are unaware of how long they will last and protect against coronavirus. Fuller believes that the induction of natural antibodies and COVID-19 vaccine-induced is a good sign.

“There is increasing evidence to suggest that T-cell responses may play an important role in protection from SARS-CoV-2.”

Antibodies in the immune system target invaders in the lymphatic system and blood like bacteria and viruses, and the T-cells defend the body from the attack of infected particles.

Also Read: Role of Immunity in Fighting COVID-19

Oxford University vaccine trial has 1,077 healthy participants aged 18 to 55 years (adults) from the United Kingdom. Neither of the participants had a history of COVID-19 infection, and half the participants were female, and more than 90% were white.

Related articles

Is drinking safe when taking prescription sleep aids?

A study says newborns’ brains have similarities to adults

However, mild side effects were observed in people; headache, fatigue was most common, while pain in the injection site, chills, high temperature, and muscle ache were also reported. The use of a pain reliever 24 hours post the vaccination reduced the side effects, and these were eliminated in the second dose.

Phase 3 trials of the vaccine have been started in the United Kingdom, Brazil, and South Africa. AstraZeneca said if the vaccine has effective results in clinical trials, they can formulate 2 billion vaccine doses.

CanSino COVID-19 Vaccine Completes Phase 2

The CanSino vaccine phase 2 trial showed that the immune system produced a robust response and was generally safe. Coronavirus vaccine trial was conducted to include 508 healthy people up to the age of 83 years, in Wuhan, China.

The participants were randomly assigned to receive a low or high dose or an inactive placebo dose. About 47% of the people from the low-dose group and 59% of people from the high-dose group were able to develop the neutralizing antibodies.

The study showed that the candidate vaccine induced an immune response in T-cells in 88% of people from the low-dose group and 90% of people belonging to the high-dose group. Additionally, both of these immune responses lasted for 28 days.

CanSino vaccine utilizes the adenovirus (weak human cold virus) that delivers the genetic code to combat the spike protein in new coronavirus in the body cells. The body cells produce spike protein that assists the immune system in recognizing and fighting the coronavirus.

The CanSino coronavirus vaccine has a low antibody response in people above the age of 55 years, and it is of concern because age and underlying health conditions have a higher risk of developing a severe form of COVID-19.

Side effects for mild and moderate infections were low; however, 9% of the people in the high-dose group experienced severe consequences, and fever was most common. Naor Bar-Zeev and Dr. William Moss in their study published in Lancet from the John Hopkins Bloomberg School of Public Health said,

“Much remains unknown about these and other COVID-19 vaccines in development, including longevity of response and in older adults or other specific groups, such as those with comorbidities who are often excluded from clinical trials, or ethnic or racial groups more severely affected by COVID-19.”

World Health Organization reports suggest that 24 COVID-19 vaccines are undergoing clinical trials around the world, and 141 vaccines are in the early stages of development.

Tags: ChinaCoronavirusCOVID-19Immune SystemUnited KingdomUnited States
Hamna Ayub

Hamna Ayub

Hi there! I'm Hamna Ayub, and I'm an editor-in-chief at Health Archives. I'm a psychologist by profession and I'm constantly researching and exploring new areas of the field to bring fresh perspectives to the table. My keen eye for detail and my photographic memory make me an excellent observer of human behavior, and my research skills give me the tools to analyze and understand complex issues. When I'm not working, you can find me traveling the world, taking in new sights and sounds and capturing them through the lens of my camera. I'm a self-taught experimental photographer, and I love to see the world through different eyes. If you're looking for an editor who is passionate about health and wellness, look no further!

Related Posts

Is drinking safe when taking prescription sleep aids
Health News

Is drinking safe when taking prescription sleep aids?

by Health Archives
July 19, 2023
2.6k
A photo of a beautiful child smiling during photoshoot
Children Health

A study says newborns’ brains have similarities to adults

by Health Archives
April 17, 2022
2.4k
Stay Healthy sign health archives
Health News

Tips to Stay Healthy in Winter

by Surayya Jabin
November 6, 2021
2.5k
Image of Honey jar with honeycomb on a solid surface with herbs
Health News

Honey Beats Antibiotics For Treatment Of Cough And Cold

by Hamna Ayub
August 19, 2020
2.5k
Image of a woman practicing meditation relaxation therapy
Health News

Meditation Relaxation Therapy Helps In The Treatment Of Sleep Paralysis

by Namood-e-Sahar
August 12, 2020
2.5k
Next Post
Salmonella Bacteria illustration

CDC And FDA Investigate Salmonella Infection Outbreak

Image of man with hand on head and looking at laptop

Watching Adult Videos Causes Erectile Dysfunction, Experts Disagree

Image of Young couple wearing masks disinfecting hands

CDC Response Team Says Coronavirus Cases Rates Higher Than Reported

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

five × one =

Popular Post

  • Spanish needles also known as shephard needle flowers in the wild

    Spanish Needle: Uses, Health Benefits of the Prickly Plant

    527 shares
    Share 211 Tweet 132
  • 8 Health Benefits of Yam Leaves

    499 shares
    Share 200 Tweet 125
  • Carao Fruit (Cassia Grandis): Health Benefits of Central America

    410 shares
    Share 164 Tweet 103
  • 9 Natural Remedies For Dark Circles And Eye Bags

    404 shares
    Share 161 Tweet 101
  • Does Wearing Gold Have Health Benefits?

    387 shares
    Share 155 Tweet 97

RECOMMENDED

Olive oil bottle placed on a dinner table
Health Benefits

Moroccan Olive Oil Health Benefits 

August 3, 2023
Image of an infant baby wearing white onesie and lying in the bed
Health News

Neural Brain Activity In Infants Predicts Autism Spectrum Disorder, Study Says

August 11, 2020

CATEGORIES

  • CBD
  • Children Health
  • Coronavirus (COVID-19)
  • Dengue
  • Dentistry
  • Ebola (Ebola Virus Disease)
  • Eyes Health
  • Family & Relationships
  • Food & Nutrition
  • Hantavirus
  • Health Benefits
  • Health News
  • HIV
  • Life
  • Men's Health
  • Mental Health
  • Skin Care
  • Syndication
  • Women's Health
Health Archives

Health Archives is your source for trustworthy health news, healthcare, medical news, fitness, nutrition, diseases, physical and mental well-being. We cover the latest news and useful insights about health, straight from the health sector.

© 2025 Health Archives | A GameBird Media site.

  • About
  • Contact
  • Disclaimers
  • Contributors
  • Privacy Policy
  • Advertise – Write For Us
No Result
View All Result
  • Health News
  • Health Benefits
  • Food & Nutrition
  • About
  • Subscribe
  • Contact Us
  • Disclaimers
  • Our Contributors

© 2025 Health Archives | A GameBird Media site.