Answer by  
                                                                                          hibpmgirl (2166)
                                                            
                          
                          
                                                          The dogs behavior is a good indicator. If the dog is throwing up, having diarrhea and/or looking tired or depressed and not bein very active there is reason for concern. If the dog is showing no signs, especially vomitting then its unlikely but the best thing to do is to call your vet and have him tested to be safe.