Human monocytic ehrlichiosis is caused by a tick-transmitted rickettsia, Ehrlichia chaffeensis. We recently reported that E. chaffeensis grown in tick cells expresses different proteins than bacteria grown in macrophages. Therefore, we tested the hypothesis that immune responses against E. chaffeensis would be different if the mice are challenged with bacteria grown in macrophages or tick cells...

Both large-wildlife loss and climatic changes can independently influence the prevalence and distribution of zoonotic disease. Given growing evidence that wildlife loss often has stronger community-level effects in low-productivity areas, we hypothesized that these perturbations would have interactive effects on disease risk. We experimentally tested this hypothesis by measuring tick abundance ...

Sequential transmission of 3 objects layer_3 layer_2 layer_1 layer_0 (4 symbols/tick) (2 symbols/tick) (1 symbol/tick) (1 symbol/tick) time transm. layer t0 t7 t1t2 t6 t3 obj_1 object_2 object_1 object_1 object_1 object_3 object_3 obj_2 obj_3 object_2 object_3 object_2 t5 t4 Ô 1 1 3 2 2 2 3 3 2 2 2 3 3 3 2 3 1 2 3 3 2 3 1 1 1 1 1 2 2 1 1 1 2 3 1 3 1 2 1 3 1 3 3 2 1 2 layer_3 layer_2 layer_1 lay...

BACKGROUND Rhipicephalus (Boophilus) annulatus tick is one of the most important ectoparasite of cattle. Recently, several laboratories in the world have been concentrated on immunizing cattle against tick using various types of tissue extracts of ticks. The aim of this study was to evaluate the effect of immunization of cattle with tick salivary gland extract on biological parameters of ticks ...

Ticks, as a group, are second only to mosquitoes as vectors of pathogens to humans and are the primary vector for pathogens of livestock, companion animals, and wildlife. The role of ticks in the transmission of viruses has been known for over 100 years and yet new pathogenic viruses are still being detected and known viruses are continually spreading to new geographic locations. Partly as a re...

The tick is a well-known vector for arthropod-borne pathogens, such as tick-borne encephalitis, Lyme disease, Japanese spotted fever and severe fever with thrombocytopenia syndrome. It is therefore important to know the tick population and distribution in our environment and wild animals in order to prevent tick-borne diseases. Here, we report the results of tick surveillance from May to Septem...

BACKGROUND AND OBJECTIVES The Tick programme of the National Heart Foundation (NHF) is the longest standing voluntary front of pack signpost nutrition logo in New Zealand. It provides a platform for collaboration with the food industry to encourage development of healthier products. This study evaluated the impact of the Tick programme on sodium in processed food. METHODS AND STUDY DESIGN Fif...

background: studies concerning ticks were of interest to evaluate the distribution and composition of species affecting live stock, thus it was a main step in our knowledge of the pathogens that they may transmit by tick. methods: a collection of 21 adult female and 15 male hard ticks, all is representing a single species of tick collected under the tail of wild goat. the specimens preserved in...

background : boophilus annulatus is an obligate blood feeder tick that can cause great losses in animals due to anemia and its ability to injure its host skin directly. the aim of this study was identification of cattle humoral immune response to some tick proteins during experimental infestation. methods : immune sera against tick were collected from experimentally infested cattle with ticks. ...

Tick infestation of the eyelid is a rare but serious condition that can lead to Crimean-Congo hemorrhagic fever. In this report, we describe two cases who presented with tick infestation of the eyelid. Neither patient developed systemic disease or adverse sequelae after tick extraction. Complete mechanical removal of ticks located on the eyelid with blunt forceps is a safe and effective treatme...