TY - GEN AU - Zavos,Christos AU - Vini,Dimitra AU - Kountouras,Jannis AU - Zavos,Nikolaos AU - Trivara,Evanthia TI - Hygiene hypothesis and protection against asthma in infants: spending time in the countryside encountering natural allergens may boost maternal immunity SN - 0306-9877 PY - 2007///0718 KW - Asthma KW - immunology KW - Communicable Diseases KW - Female KW - Humans KW - Hygiene KW - Immunity, Maternally-Acquired KW - Infant, Newborn KW - Male KW - Models, Immunological KW - Pregnancy KW - Pregnancy Complications, Infectious KW - epidemiology KW - Residence Characteristics KW - Risk Factors N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1016/j.mehy.2006.08.034 ER -