Since more than 10 percent of the H1N1 swine flu fatalities in Brazil were pregnant women, doctors in Japan are asking expectant mothers — who have a higher risk of developing complications if infected — to wash their hands and take other precautions.

The Japan Society of Obstetrics and Gynecology, an organization of OB-GYN doctors, is calling for pregnant women with suspected swine flu symptoms to get treatment at fever clinics and general hospitals rather than OB-GYN clinics to prevent the H1N1 virus from spreading to other expectant mothers during the epidemic.

JSOG is recommending Tamiflu and Relenza for pregnant women who catch the new flu. A guideline in the United States says the two antiviral drugs have no negative side effects on babies. The organization is also urging the government to give expectant women priority for swine flu vaccines.