False alarm

 作者:谯内蘸     |      日期:2019-03-07 06:06:02
By Michael Le Page THERE is no evidence to support the widely held belief that we are in the grip of an autism epidemic, says a leading researcher in Britain. What’s more, there has been no increase in the proportion of children who have “regressive autism”. A few researchers believe the combined measles, mumps and rubella (MMR) vaccine triggers autism. They point to an apparent rise in cases since the introduction of MMR in the 1980s (New Scientist, 3 February, p 8). Before the 1980s,