Stanford Researchers Develop 'Universal Vaccine' Spray to Combat Multiple Respiratory Illnesses

New York. A single vaccine now offers hope for protecting people worldwide from common colds, influenza, lung infections, and even allergies. This 'Universal Vaccine,' developed by researchers at Stanford University in the US, can be administered as a nasal spray.

According to scientists, this vaccine fundamentally changes the basic premise of vaccine science. Since Edward Jenner pioneered vaccination in 1796, all previous vaccines taught the body to fight only one specific infection. For example, the measles vaccine fought only measles, and the smallpox vaccine fought only smallpox. However, this new vaccine, instead of training against one specific virus, works to keep the body's overall immune system constantly in an 'alert' state.

According to the study published in the journal 'Science,' this nasal spray activates the white blood cells in the lungs, known as 'macrophages,' to be able to immediately resist any external attack. In animal testing, the vaccine's effect was observed to last for about three months. 

Researchers claim it has the capacity to prevent viruses from entering the body through the lungs by 100 to 1000 times. According to Bali Pulendran, a Professor of Microbiology and Immunology at Stanford, this vaccine can help control not only flu and Covid but also severe bacterial infections and asthma caused by dust allergies.

Experts in the field of vaccinology have described this research as extremely encouraging and a major breakthrough. Professor Daniela Ferreira of Oxford University stated that this vaccine could change the way humans are protected from common to complex respiratory infections. 

Especially during the initial phase of a new pandemic like COVID-19, before a specific vaccine can be developed, this universal vaccine can play a significant role in saving lives and reducing the severity of infection. Furthermore, this spray appears very effective for preventing various seasonal colds and viruses that spread during winter.

However, this study is still in its preliminary stages, and clinical trials on the human body are yet to be conducted. Because there are some differences between the immune systems of mice and humans, scientists are still studying how long its effect will last in humans and whether keeping the body constantly on 'high alert' will cause any negative effects. studying 

Professor Jonathan Ball of the Liverpool School of Tropical Medicine cautioned about the risk that keeping the body's immune system constantly stimulated might cause it to harm the body itself. Nevertheless, scientists believe it can be used as an auxiliary protective shield rather than a replacement for current vaccines.