A negative blood group percentage in india

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Share on Pinterest A person’s blood type may fall into any of the 36 human blood groups. Getty Images People can ABO system This system classifies blood types as follows: • Blood group A has A antigens on the red blood cells. • Blood group B has B antigens. • Blood group O has neither A nor B antigens. • Blood group AB has both A and B antigens. Rh system Red blood cells may have another antigen called the Rh antigen on their surface. If it is present, the blood group is Rh-positive, but if it is absent, the blood group is Rh-negative. Combining these two characteristics yields the eight most common blood types. Most people have one of these types: • O-positive • O-negative • A-positive • A-negative • B-positive • B-negative • AB-positive • AB-negative The genes that a person inherits from their parents determine the mix of antigens and proteins in their blood. These genetic factors tend to run in ethnic groups. As such, the For this reason, For some conditions, such as For example, only The least common blood type in the U.S. is AB-negative, with Statistics from the • African American: 0.3% AB-negative, 1% B-negative, and 2% A-negative • Latin American: 0.2% AB-negative, 1% B-negative, and 2% both A-negative and AB-positive • Asian: 0.1% AB-negative, 0.4% B-negative, and 0.5% A-negative • Caucasian: 1% AB-negative, 2% B-negative, and 3% AB-positive A and B antigens only represent two of approximately Having an antigen that most people do not have, or missing an antigen th...

• Home Currently selected • Current Issue • Previous Issues • For Authors • Submit a Manuscript • Information for Authors • Language Editing Services • Published Ahead-of-Print • Journal Info • About the Journal • Editorial Board • Affiliated Society • Advertising • Subscriptions • Reprints • Rights and Permissions • Contact Us 1 Department of Pathology, Veer Chandra Singh Garhwali Government Medical Science and Research Institute, Srinagar, Uttarakhand, India 2 Department of Physiology, Veer Chandra Singh Garhwali Government Medical Science and Research Institute, Srinagar, Uttarakhand, India 3 Department of PSM, Veer Chandra Singh Garhwali Government Medical Science and Research Institute, Srinagar, Uttarakhand, India 4 Deputy Assistant Director General, Directorate. General Health Services, Ministry of Health & Family Welfare, Nirman Bhawan, New Delhi, India Address for correspondence: Dr. Haroon AS, Department of Community Medicine, Veer Chandra Singh Garhwali Government Medical Science and Research Institute, Uttarakhand, India. E-mail: [emailprotected] Objective: To determine the prevalence of ABO and Rh blood groups based on the antigenic presence on the surface of red blood cells with respect to gender and calculate allele frequency of the blood groups. Globally, approximately 700 type red cell antigens have been identified till now. ABO and Rh blood groups play an important role in the process of blood transfusion, resolving certain medicolegal issues, parental te...

The rapid global spread of the novel coronavirus SARS-CoV-2 has strained healthcare and testing resources, making the identification and prioritization of individuals most at-risk a critical challenge. Recent evidence suggests blood type may affect risk of severe COVID-19. Here, we use observational healthcare data on 14,112 individuals tested for SARS-CoV-2 with known blood type in the New York Presbyterian (NYP) hospital system to assess the association between ABO and Rh blood types and infection, intubation, and death. We find slightly increased infection prevalence among non-O types. Risk of intubation was decreased among A and increased among AB and B types, compared with type O, while risk of death was increased for type AB and decreased for types A and B. We estimate Rh-negative blood type to have a protective effect for all three outcomes. Our results add to the growing body of evidence suggesting blood type may play a role in COVID-19. The novel Coronavirus disease (COVID-19, caused by the SARS-CoV-2 virus) has spread rapidly across the globe and has caused over 21.1 million confirmed infections and over 761,000 deaths worldwide as of August 17, 2020 Recent work has demonstrated an association between ABO blood types and COVID-19 risk. Using data from Wuhan and Shenzhen, Zhao et al. found a greater proportion of A and a lower proportion of O blood types among COVID-19 patients, relative to the general populations of Wuhan and Shenzhen The ABO blood type trait ref...

• The ABO blood group system was discovered by Karl Landsteiner in 1901. • He established that a person’s • All individuals have the H antigen on their red blood cells. Persons having only the H antigen are known to have the basic blood group O. The H antigen is the precursor for the A and B antigens. Together the 3 antigens form the basis of the ABO blood grouping system. • In total there are 4 different blood groups. They are A, B, AB and O blood groups. Blood group O is the most commonly occurring and Blood group AB is the least common. • Antibodies against whichever antigen is not occurring on the person’s RBCs naturally occur in the plasma. This is referred to as The Law of Landsteiner. It is explained below. • A person having the blood group A will have the A antigen on the surface of red blood cells and antibodies to the B antigen that he does not possess. • A person having the blood group B will have the B antigen on the surface of red blood cells and anti-A antibodies in your plasma. • Those having the blood group AB will have A and B antigens on the surface of red blood cells and no antibodies to A or B antigens in plasma. • Blood group AB individuals are considered universal recipients since they do not have any antibodies that will attack the donor’s antigens. • Those having the blood group O will lack both type A and type B antigens on the surface of red blood cells but will have anti-A and anti-B antibodies in plasma. • Blood group O individuals are considere...