However, both the possessive and nonpossessive forms remain in use by the general population. The term "trisomy 21" is also commonly used. Ethics
Most obstetricians argue that not offering screening for Down syndrome is unethical. As it is a medically reasonable procedure, per informed consent, people should at least be given information about it. It will then be the womans choice, based on her personal beliefs, how much or how little screening she wishes. When results from testing become available, it is also considered unethical not to give the results to the person in question.Some bioethicists deem it reasonable for parents to select a child who would have the highest well-being. One criticism of this reasoning is that it often values those with disabilities less. Some parents argue that Down syndrome should not be prevented or cured and that eliminating Down syndrome amounts to genocide. The disability rights movement does not have a position on screening, although some members consider testing and abortion discriminatory. Some in the United States who are anti-abortion support abortion if the fetus is disabled, while others do not. Of a group of 40 mothers in the United States who have had one child with Down syndrome, half agreed to screening in the next pregnancy.Within the US, some Protestant denominations see abortion as acceptable when a fetus has Down syndrome while Orthodox Christianity and Roman Catholicism do not. Some of those against screening refer to it as a form of eugenics.
Here, the dust mites are beneficial as they return cotton to its original state after it has degraded by contact with bare skin.Dust mite eggs are freeze tolerant (−70 °C for 30 minutes); hatching can normally be prevented by exposure of fabrics to:
Direct sunlight for 3 hours or
Dry or wet heat of at least 60 °C (140 °F) for a minimum of 30 minutes.Dust mites drown in water.Good properties of anti-mite fabrics have been identified as being:
Thread count greater than 246. Pore size of between 2 and 10 micrometres. This will prevent dust mite faecal pellets that can be small as 10 µm. Allergen impenetrability >99%. Dust leakage of less than 4%. Breathability between 2 and 6 cm3 s−1 cm−2. Indoor climate
Allergy patients are advised to keep the relative humidity below 50%, if possible. Very few mites can survive if the humidity is less than 45% (at 22 °C (72 °F)). However, they can survive if the humidity is high just for an hour and a half per day, for example due to moisture released to the air when cooking food. Treatment
Allergen immunotherapy
Allergen immunotherapy (AIT, also known as desensitization or hypo-sensitization) is a treatment involved in administering the doses of allergens to accustom the body to substances that are generally harmless (pollen, house dust mites), thereby inducing specific long-term tolerance. Allergen immunotherapy is the only treatment that alters the disease mechanism.Immunotherapy can be administered orally (as sublingual tablets or sublingual drops), or by injections under the skin (subcutaneous).