My Revolution of PARTs

First Published: May 18, 2022 | Last Updated:May 18, 2022 हर साल 18 मई को विश्व एड्स वैक्सीन दिवस (World AIDS Vaccine Day) मनाया जाता है। इस दिन को HIV (Human Immunodeficiency Virus) Vaccine Awareness Day भी कहा जाता है। विश्व एड्स वैक्सीन दिवस (World AIDS Vaccine Day) यह दिन उन हजारों स्वयंसेवकों, स्वास्थ्य पेशेवरों, सामुदायिक नेताओं और वैज्ञानिकों को सम्मानित करने के लिए मनाया जाता है जो एड्स (Acquired Immune Deficiency Syndrome – AIDS) वैक्सीन विकसित करने के लिए एक साथ काम करते हैं। एड्स वैक्सीन दिवस 18 मई को ही क्यों मनाया जाता है? एड्स वैक्सीन की अवधारणा को तत्कालीन अमेरिकी राष्ट्रपति बिल क्लिंटन ने 18 मई, 1997 को मॉर्गन स्टेट यूनिवर्सिटी में अपने भाषण में निहित किया था। एचआईवी वैक्सीन (HIV Vaccine) वर्तमान में बाजार में कोई लाइसेंस प्राप्त एचआईवी टीका नहीं है। हालांकि, चिकित्सा उपचार मौजूद हैं। एचआईवी संक्रमण को नियंत्रित करने के लिए अत्यधिक सक्रिय एंटीरेट्रोवाइरल थेरेपी (Highly Active Antiretroviral Therapy – HAART) की सिफारिश की जाती है...

CONNECTICUT: In a new study by Yale's Akiko Iwasaki, the Waldemar Von Zedtwitz Professor of Immunobiology, it was found that intranasal vaccination provided broad-based protection against heterologous respiratory viruses in mice. The research has been published in the 'Science Immunology Journal'. "The best immune defence happens at the gate, guarding against viruses trying to enter," said Iwasaki, senior author of the study. Mucous membranes contain their own immune defence system that combat air- or foodborne pathogens. When challenged, these barrier tissues produce B cells which in turn secrete immunoglobin A (IgA) antibodies. Unlike vaccines which elicit a system-wide immune response, IgA antibodies work locally on mucosal surfaces found in the nose, stomach, and lungs. While the protective role of IgA-producing cells had been well established in combating intestinal pathogens, Iwasaki's lab wondered if triggering IgA response might also produce a loca...

CALIFORNIA: Researchers have found rare naturally occurring T cells that are capable of targeting a protein found in SARS-CoV-2 and a range of other coronaviruses. The study has been published in the 'Cell Reports Journal'. The findings suggested that a component of this protein, called viral polymerase, could potentially be added to Covid-19 vaccines to create a longer-lasting immune response and increase protection against new variants of the virus. Most Covid-19 vaccines use a part of the spike protein found on the surface of the virus to prompt the immune system to produce antibodies. However, newer variants -- such as delta and omicron -- carry mutations to the spike protein, which can make them less recognizable to the immune cells and antibodies stimulated by vaccination. Researchers said that a new generation of vaccines will likely be needed to create a more robust and wide-ranging immune response capable of beating back current variants and those that may arise in...

LOS ANGELES: Two doses of Moderna Covid-19 vaccine are highly effective against SARS-CoV-2 variants, but protection against Delta infection decreases over time, according to a study conducted in the US. At the time of the study, the omicron variant had not yet been detected in the Southern California region, the researchers said. The research, published in The British Medical Journal on Wednesday, showed the vaccine was effective against Covid-19 hospitalisation associated with the Delta variant. However, vaccine effectiveness against the variant moderately declined with increasing time after vaccination. "This study confirmed effectiveness against all variants during the study period, although we did find a drop in effectiveness over time against Delta infection, from 94 per cent effectiveness in the first 2 months after vaccination to 80 per cent effectiveness after 6 months," said Katia Bruxvoort, from Kaiser Permanente, US. "Protection against hospitalisation due...