Friday, July 25, 2014 7:42 AM EST

Allergy

Allergy is a hypersensitive disorder of the immune system. Allergic reactions occur to normally harmless environmental substances known as allergens; these reactions are acquired, predictable, and rapid. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils by a type of antibody known as IgE, resulting in an extreme inflammatory response. Common allergic reactions include eczema, hives, hay fever,asthma attacks, food allergies, and reactions to the venom of stinging insects such as waspsand bees.

Headlines Around the Web

Articles About Allergy

A member of the audience uses an iPhone to record DJ Afrojack's performanceA member of the audience uses an iPhone to record DJ Afrojack's performance on ABC network's Good Morning America program in New York on ABC network's Good Morn
Nickel In iPad and Other Devices Can Cause Rash - Report Says

By IBTimes AU

According to a report in the Monday's Pediatrics, an Apple iPad caused a body rash in an 11-year-old boy who was treated at Rady Children's Hospital in San Diego Hospital. This led to a large number of reports in medical journals that detailed the effects of nickel on the body. (Jul 15)

MORE TOPICS: IPAD

A woman hugs her baby at California Institute for Women state prison in Chino, California May 5, 2012.
Caesarean Babies Tend to Have Weaker Immunity

By IBTimes AU

According to a recent finding, caesarean babies tend to have weaker immunity. (Jul 11)

HIV Cure: Babies Lack of Memory T-Cells Make Virus Unable to Hide from Antiretroviral Drugs

By IBTimes AU

New trial is set to be launched soon to treat more than 400 AIDS-infected babies to determine if infants are easily cured from HIV compared to adults. According to NIAID, the lack of memory T-cells in babies can make the virus vulnerable against drugs due to lack of reservoirs. (Jun 18)

MORE TOPICS: AIDS, INFECTION

Beyonce & Jay Z Reports: Rapper’s ’99 Problems’ Excerpt [VIDEO]

By IBTimes AU

Also known as Shawn Corey Carter and one of the world's best-selling artists of all time, Jay Z is multi-awarded rapper, entrepreneur and producer whose very name demands respect to all his colleagues in the industry. (Jun 11)

MORE TOPICS: GOLD, ARGENTINA, CLIMATE CHANGE, NEW YORK, DIAMONDS, ANDROID

Truvada Pill an HIV Cure? CDC Recommends Prevention Pill For High-Risk Cases

By IBTimes AU

The Centers for Disease Control and Prevention (CDC) has new guidelines that urge high-risk individuals to take pre-exposure prophylaxis (PrEP) or anti-HIV medicines to decrease the chances of transmission. (May 21)

MORE TOPICS: AIDS, AIDS, INFECTION

Bureau Reveals Rising 'Peanut Allergy or Intolerance' Especially Among Boys

By IBTimes AU

The Australian Bureau of Statistics has released new figures indicating boys have a higher risk of developing an allergy to peanuts as compared to girls. (May 19)

MORE TOPICS: AUSTRALIA

Ryan Seacrest
Caleb Johnson of 'American Idol' Sorry For 'Retard' Comment, Fans Voting Him Out?

By IBTimes AU

Caleb Johnson, finalist of the hit music competition "American Idol", apologizes to fans through his Facebook accout on "retard" comment. Caleb's apparent use of the word "retard" didn't sit well with his fans ... (May 05)

MORE TOPICS: FACEBOOK, AMERICAN IDOL

Sun Pharma to Buy Ranbaxy in $3.2 Billion all-share Deal
Ranbaxy Recalls Nearly 30,000 Packs of Allergy-relief Drug in U.S

By Reuters

Drugmaker Ranbaxy Laboratories Ltd (RANB.NS) started recalling 29,790 packs of an allergy-relief medicine in the United States in February, after finding defects in the packaging, the U.S. Food and Drug Administration said. (May 03)

MORE TOPICS: MANUFACTURING, INDIA, NEW JERSEY

FHM's Sexiest Woman in the World, Jennifer Lawrence Told To Get It Together By Miley Cyrus

By IBTimes AU

Miley Cyrus told Jennifer Lawrence to get it together. (May 01)

MORE TOPICS: HOLLYWOOD

Camels are seen after the 20km camel race during the opening of the Janadriya festival near Riyadh, in this April 3, 2013 file photo. Scientists believe camels in Saudi Arabia are the main animal reservoir of MERS, a new disease that kills about a third o
Cure or Vaccine for MERS-CoV Virus May Already Be Near; Camels Found to Be Culprit Carriers of Disease

By IBTimes AU

The cure or vaccine for the MERS-CoV virus (Middle East respiratory syndrome coronavirus) currently sweeping across the Middle East may already be near. (May 01)

MORE TOPICS: CHINA, NEW YORK, INFECTION, CANCER