After food safety, toys quality, the conditions of Chinese factories are questioned. From The New York Times:
China Labor Watch, which is based in New York, said that it investigated eight Chinese factories over the last year and discovered widespread labor violations, including the hiring of under-age workers, mandatory overtime, unsafe working conditions and managers who engaged in verbal and sexual abuse.
Also see China’s Diseased Pigs (1 Letter), which said “Given our exportation of large-scale intensive confinement facilities, it is tragic, though not surprising, that disease is devastating the Chinese industry. With this industrialization often comes overcrowding, inadequate ventilation and related physiological stress ” factors implicated as heightening the risk of disease outbreaks.”