Check out this article a gynecologist in Long Beach CA from GYN Emergent Care Cener found:

Women who catch a cold during pregnancy are more likely to give birth to an asthmatic child, a new study has revealed.

Researchers say women who are pregnant may want to take extra precautions around those who are sniffling and sneezing this winter.

The more colds and viral infections a woman has during pregnancy, the higher the risk of her baby having asthma, according to the study published in the journal Annals of Allergy, Asthma and Immunology.

Researchers found a mother’s infections and bacterial exposure during pregnancy affect the baby's environment in the womb, increasing a baby’s risk of developing allergies and asthma in childhood.

Allergist Dr Mitch Grayson, Annals deputy editor and fellow of the American College of Allergy, Asthma and Immunology, said: ‘In addition, these same children that had early exposure to allergens, such as house dust and pet hair, had increased odds of becoming sensitised by age five.

‘When dust mites from the mother and child’s mattresses were examined, children with high dust mite exposure, yet low bacteria exposure, were more likely to be allergic to dust mites than those with low mite exposure and high bacteria exposure.’

Researchers studied 513 pregnant women in Germany, and their 526 children.

Questionnaires were completed during pregnancy, when the children were three and 12 months old, and every year up to five-years-old.

Of the families, 61 per cent had a parent with asthma, hay fever or atopic dermatitis.

According to the ACAAI, asthma and allergy can be hereditary.