Related by context. Frequent words. (Click for all words.) 59 swab samples 58 nasal swabs 58 Tissue samples 58 stool samples 57 sputum samples 56 serum samples 55 tissue samples 54 samples 53 specimens 52 serological 52 nasal swab 51 throat swabs 51 saliva sample 50 saliva samples 50 urine specimens 50 swabs 49 rhesus 49 semen sample 49 throat swab 48 semen samples 48 coprolites 48 hookworms 48 Veterinary Laboratory 48 semen 48 skin prick 47 urine samples 47 DNA swabs 47 nasal secretions 47 Soil samples 47 mosquito pools 47 Specimens 47 salmonella enteritidis 46 DNA samples 46 Western blot 46 avian influenza viruses 46 rhesus macaque 46 babesiosis 46 ear mites 46 sediment samples 45 sentinel chickens 45 Tularemia 45 vaginal secretions 45 highly pathogenic H#N# virus 45 carcasses 45 H5 virus 45 saliva 44 WNV infection 44 necropsies 44 cheek swabs 44 infected cow 44 copperheads 44 bird carcasses 44 macaque monkeys 44 microbiota 44 heartworms 44 marten 43 genotyped 43 infected mosquitoes 43 mutant strains 43 fecal matter 43 Biopsies 43 canine influenza 43 Genotyping 43 swab 43 swabbed 43 revaccinated 43 monkeypox virus 43 pseudorabies 43 microscopic examination 42 droppings 42 avian flu viruses 42 NHANES 42 animals 42 Diagnostic Laboratory 42 parasitology 42 genetic markers 42 sample 42 seropositive 42 flea bites 42 vitro experiments 42 mitochondrial genome 42 NICD 42 herpesvirus 42 parasitic worms 42 mycobacteria 42 rabid skunk 42 beaked whale 42 veterinary pathologist 42 Lactobacillus 42 biological specimens 42 rhesus monkey 42 diseased cow 42 St. Louis encephalitis 42 genetic sequences 41 epidemiologic studies 41 cloned stem cells 41 DNA sample 41 specimen 41 E coli bacteria 41 imprinted genes 41 faecal