Birds can act as vectors for spreading diseases such as psittacosis , salmonellosis , campylobacteriosis , mycobacteriosis -LRB- avian tuberculosis -RRB- , avian influenza -LRB- bird flu -RRB- , giardiasis , and cryptosporidiosis over long distances .

People can catch some bird diseases , for example psittacosis , salmonellosis , campylobacteriosis , ORGANIZATION@1 's disease , mycobacteriosis , influenza , giardiasis , and cryptosporiadiosis .
