Haemotropic Mycoplasma species in pet cats in Latvia: a study, phylogenetic analysis and clinical case report

Objectives The aim of this study was to evaluate whether haemotropic Mycoplasma species are detected in pet cats in Latvia, to perform a phylogenetic analysis of the detected pathogens and to report a clinical case of feline infectious anaemia. Methods Peripheral blood samples (n = 125) from pet cats were submitted; 99 samples were adequate to test for the presence of Mycoplasma species DNA by nested PCR. A clinical case was added in the later stages of the study. Positive isolates were subjected to phylogenetic analysis. Results The prevalence of ‘ Candidatus Mycoplasma haemominutum’ was 15% (n = 15/99), that of Mycoplasma haemofelis was 5% (5/99) and that of ‘ Candidatus Mycoplasma turicensis’ was 2% (n = 2/99). Cases of coinfection included ‘ Candidatus M haemominutum’ + M haemofelis (4%; n = 4/99) and ‘ Candidatus M haemominutum’ + ‘ Candidatus M turicensis’ (1%; n = 1/99). This is the first published report of M haemofelis infection in the Baltic states. Two different ‘ Candidatus M turicensis’ isolates were discovered after phylogenetic analysis. Conclusions and relevance This report is the first of an autochthonous feline infectious anaemia case in the Baltic region. The prevalence of Mycoplasma species was similar to that in other northern European countries. Phylogenetic analysis revealed variability of the isolates; one of the ‘ Candidatus M turicensis’ genotypes was detected for the first time in Europe.

Epidemiology of feline hemoplasmosis in the population of domestic cats in Istanbul

The aim of this study was to determine the prevalence of hemoplasma species in cats by real-time PCR and to determine the distribution of the species. Furthermore, it was aimed to evaluate factors that are thought to be important in the epidemiology of the disease in cats statistically. For this purpose, blood samples from 246 cats were examined for Candidatus Mycoplasma haemominitum (CMhm), Mycoplasma haemofelis (Mhf) and Candidatus Mycoplasma turicensis (CMt) by real-time PCR. CMhm was detected in 20 (8.13%), CMt was detected in 3 (1.22%), and Mhf was found in 2 (0.81%) of 246 cats. At least one of the hemoplasma species was detected in 21 (8.54%) of 246 cats, and two different hemoplasma species were detected in 4 (19.05%) of 21 cats diagnosed with hemoplasma. The relationship between PCR positivity, the contact of cats with other cats (p = 0.02) and the detection of the intraoral wound (p = 0.001) was found to be statistically significant. The statistical significance of contact with other cats in the formation of the disease was revealed. The strong relationship between the presence of intraoral lesions and hemoplasma infection was revealed for the first time. Studies involving epidemiological data and their relationship with clinical findings should be continued.

Hemoplasma infection in wild captive carnivores

ABSTRACT: Hemoplasmas are bacteria able to adhere themselves loosely to the plasma membrane of erythrocytes and may parasitize several species of mammals. There are three known species of hemoplasmas that parasitize domestic and wild cats: Mycoplasma haemofelis, ‘Candidatus Mycoplasma haemominutum’ and ‘Candidatus Mycoplasma turicensis’. Dogs are infected by at least two species of hemoplasmas: ‘Candidatus Mycoplasma haematoparvum’ and Mycoplasma haemocanis. The hemoplasmoses are very important in veterinary clinics, either because of its worldwide distribution and severity of clinical signs, depending on parasite species and host immune competence, or due to its zoonotic potential and capability of infecting endangered species. This study set out to investigate which hemoplasmas species parasitize different captive wild carnivores in order to clarify the epidemiology of hemoplasmoses in wild animals. Furthermore, the research intended to characterize the hematological changes caused by different species of hemotropic mycoplasmas infection in order to establish their clinical importance to wild species and the capacity of these species to become a reservoir of studied agents. Samples of 33 wild felids and 18 wild canids were investigated using polymerase chain reaction (PCR) to detect hemoplasmas DNA and it was observed that the occurrence of infection in these species is 45.5% and 83.3%, respectively. Factors such as age, gender or anaemia are not more frequent in animals positive for the infection. Therefore, it is concluded that infection caused by hemoplasmas in wild carnivores has high prevalence, and either agent pathogenicity is low, or chronic stage is more frequent, resulting in a low rate of diagnosis.

Molecular confirmation of hemothropic mycoplasmas (hemoplasmas) in domestic cats (Felis catus) in Romania

Background: The hemotropic mycoplasmas (hemoplasmas) of the genus Mycoplasma are recognized as important bacteria that parasitize red blood cells, causing hemolytic anemia in many mammalian species, including cats. No information is available concerning the presence of feline hemoplasma infections in cats in Romania. Thus, the objective of the present study was to provide data on the occurrence and molecular characterization of hemothropic mycoplasmas in client owned cats in Romania. Methods : Blood samples from 51 unhealthy cats, originating from Timişoara Municipality, Romania, were screened for the presence of hemoplasmas using conventional polymerase chain reaction (PCR) targeting the 16S rRNA gene and sequencing assays. Results: Molecular analysis revealed 11 (21.6%) positive samples, consisting of 8 (72.7%) Candidatus Mycoplasma haemominutum and 3 (27.3%) Mycoplasma haemofelis confirmed positives. Candidatus Mycoplasma turicensis was not detected, and no co-infections were registered. No significant associations ( p > 0 . 05) were found between the hemoplasma infection status and age, gender, breed, presence of ectoparasites, FeLV/FIV positivity of cats or the sampling season. However, outdoor access was positively associated ( p =0.049) with infection and could be considered a risk factor (OR=4.1) in acquiring feline hemotropic mycoplasmas. Conclusions : The findings support the emergence of feline hemoplasma infections in previously uninvestigated territories of Europe, providing useful information for small animal practitioners. To our knowledge, the present survey is the first reported molecular evidence of feline hemoplasma infections in Romania.

Molecular confirmation of hemothropic mycoplasmas (hemoplasmas) in domestic cats in Romania

Background The hemotropic mycoplasmas (hemoplasmas) of the genus Mycoplasma are recognized as important bacteria that parasitize red blood cells, causing hemolytic anemia in many mammalian species, including cats. No information is available concerning the presence of feline hemoplasma infections in cats in Romania. Thus, the objective of the present study was to provide data on the occurrence and molecular characterization of hemothropic mycoplasmas in client owned cats in Romania. Methods Blood samples from 51 unhealthy cats, originating from Timişoara Municipality, Romania, were screened for the presence of hemoplasmas using conventional polymerase chain reaction (PCR) targeting the 16S rRNA gene and sequencing assays. Results Molecular analysis revealed 11 (21.6%) positive samples, consisting of 8 (72.7%) Candidatus Mycoplasma haemominutum and 3 (27.3%) Mycoplasma haemofelis confirmed positives. Candidatus Mycoplasma turicensis was not detected, and no co-infections were registered. No significant associations ( p > 0.05) were found between the hemoplasma infection status and age, gender, breed, presence of ectoparasites, FeLV/FIV positivity of cats or the sampling season. However, outdoor access was positively associated ( p =0.049) with infection and could be considered a risk factor (OR=4.1) in acquiring feline hemotropic mycoplasmas. Conclusions The findings support the emergence of feline hemoplasma infections in previously uninvestigated territories of Europe, providing useful information for small animal practitioners. To our knowledge, the present survey is the first reported molecular evidence of feline hemoplasma infections in Romania.

Hemotropic mycoplasmas in naturally infected cats in Northeastern Brazil

This study aimed to determine the prevalence, factors associated, laboratory findings (with and without coinfection by retroviruses) among naturally infected cats by hemoplasmas in northeastern Brazil. For convenience, 200 domesticated and healthy cats were selected. Blood samples were taken to perform complete blood counts, serum biochemical, immunochromatography tests and nPCR for FIV and FeLV, and PCR for hemoplasma recognition. An interview was conducted to determine the factors associated with hemoplasmas. A total of 71/200 (35.5%) cats were positive for at least one hemoplasma species. Isolated infections were observed in 12,5% for 'Candidatus Mycoplasma haemominutum', 12% for Mycoplasma haemofelis and 3% for 'Candidatus Mycoplasma turicensis'. Regarding copositivity, 2% of the animals were positive for M. haemofelis and 'Candidatus Mycoplasma haemominutum', 1.5% for M. haemofelis and 'Candidatus Mycoplasma turicensis', and 4.5% for ' Candidatus Mycoplasma haemominutum' and 'Candidatus Mycoplasma turicensis'. No clinical and laboratory changes were observed in the animals that were concomitantly positive for retroviruses and hemoplasmas. Periurban region cats were more likely to be infected by M. haemofelis, while contact with other cats and infection by ' Candidatus Mycoplasma turicensis' were associated with 'Candidatus Mycoplasma haemominutum'. This study indicates that infection by hemoplasmas is a common find in cats from northeastern Brazil.

Natural hemoplasma infection of cats in Cuiaba, Mato Grosso, Brazil

The aim of this research was to investigate natural hemoplasma infection in cats treated at the Veterinary Hospital of the Federal University of Mato Grosso, and the factors associated with infection. Blood samples from 151 cats of different sexes, breeds, and ages were analyzed by PCR and blood count. The overall occurrence of hemoplasma was 25.8%. Mycoplasma haemofelis (Mhf), ‘Candidatus Mycoplasma haemominutum (CMhm)’, and ‘Candidatus Mycoplasma turicensis’ (CMt) were observed in 15.2%, 14.6% and 2.6% of cats, respectively. In 6.6 % of cases, co-infection was observed. Male felines or mixed breed cats were associated with infection by CMhm (P = 0.02 and 0.04, respectively). The data obtained demonstrated an occurrence of 25.8% for hemoplasma infection in felines coming from clinical care in the city of Cuiabá, where males were at higher risk of acquiring the infection by these agents, in addition to a higher risk for CMhm in felines with no specific breed.

Haemoplasmosis in cats: European guidelines from the ABCD on prevention and management

Overview: Haemoplasmas are haemotropic bacteria that can induce anaemia in a wide range of mammalian species. Infection in cats: Mycoplasma haemofelis is the most pathogenic of the three main feline haemoplasma species known to infect cats. ‘ Candidatus Mycoplasma haemominutum’ and ‘ Candidatus Mycoplasma turicensis’ are less pathogenic but can result in disease in immunocompromised cats. Male, non-pedigree cats with outdoor access are more likely to be haemoplasma infected, and ‘ Candidatus M haemominutum’ is more common in older cats. All three haemoplasma species can be carried asymptomatically. Transmission: The natural mode of transmission of haemoplasma infection is not known, but aggressive interactions and vectors are possibilities. Transmission by blood transfusion can occur and all blood donors should be screened for haemoplasma infection. Diagnosis and treatment: PCR assays are the preferred diagnostic method for haemoplasma infections. Treatment with doxycycline for 2–4 weeks is usually effective for M haemofelis-associated clinical disease (but this may not clear infection). Little information is currently available on the antibiotic responsiveness of ‘ Candidatus M haemominutum’ and ‘ Candidatus M turicensis’.