Correlation coefficientA correlation coefficient is a numerical measure of some type of correlation, meaning a statistical relationship between two variables. The variables may be two columns of a given data set of observations, often called a sample, or two components of a multivariate random variable with a known distribution. Several types of correlation coefficient exist, each with their own definition and own range of usability and characteristics. They all assume values in the range from −1 to +1, where ±1 indicates the strongest possible agreement and 0 the strongest possible disagreement.
Avian influenzaAvian influenza, also known as avian flu, is a bird flu caused by the influenza A virus, which can infect people. It is similar to other types of animal flu in that it is caused by a virus strain that has adapted to a specific host. The type with the greatest risk is highly pathogenic avian influenza (HPAI). Though influenza A is adapted to birds, it can also stably adapt and sustain person-to-person transmission. Recent influenza research into the genes of the Spanish flu virus shows it to have genes adapted from both human and avian strains.
Peginterferon alfa-2aPegylated interferon alfa-2a, sold under the brand name Pegasys among others, is medication used to treat hepatitis C and hepatitis B. For hepatitis C it is typically used together with ribavirin and cure rates are between 24 and 92%. For hepatitis B it may be used alone. It is given by injection under the skin. Side effects are common. They may include headache, feeling tired, depression, trouble sleeping, hair loss, nausea, pain at the site of injection, and fever.
Serum Institute of IndiaSerum Institute of India (SII) is an Indian biotechnology and biopharmaceuticals company, based in Pune. It is the world's largest manufacturer of vaccines. It was founded by Cyrus Poonawalla in 1966 and is a part of Cyrus Poonawalla Group. The Serum Institute of India was founded in 1966 in the city of Pune, India. The company set out to produce immunobiological's, which were imported into India at high prices. Among the first products the Serum Institute of India manufactured in large quantities were the tetanus antitoxin, snake antivenom, DPT vaccine, and MMR vaccine.
