Misusing antibiotics can be dangerous, because some people have allergic reactions to them and abuse can foster hardier strains of bacteria.
The disparity between the capital's needs and those of the rest of the country has fostered a strain of London nationalism.
Considering nursing posture, biological DBA mothers showed higher levels compared to both foster mothers (mother strain effect F 2,21) = 27.9 p<0.001 with bio>AKR p<0.001, bio>C3H p<0.001 and AKR
The nest reorganizing behavior of biological DBA mothers was comparable to that of C3H foster
When cloned embryos were developed to the 2-cell stage, it was transferred to the oviduct of foster mothers (ICR strain) which had been mated with vasectomized ICR males 1 day previously.
Now British researchers are predicting that heavy use of Tamiflu, as during a pandemic, will expose wild waterfowl to enough of the antiviral agent to foster a resistant strain [ EHP 115:102–106; Singer et al.].
A same-strain, cross-fostering control condition is needed to distinguish whether strain, fostering, or both drive this effect.
Ms. Sabater-Kerr knows firsthand the financial strain on foster parents.
When newly born pups were found at the same time in both strains of parents, a part of the litter was reciprocally cross-fostered to parents of the other strain of mice (B6-foster and BALB-foster).
