Hemoplasma prevalence and hematological abnormalities associated with infection in three different cat populations from Southern Brazil

Santos, Andrea Pires dos; Conrado, Francisco de Oliveira; Messick, Joanne B.; Biondo, Alexander Welker; Oliveira, Simone Tostes de; Guimarães, Ana M. S.; Nascimento, Naíla Cannes do; Pedralli, Viviane; Lasta, Camila Serina; González, Félix Hilario Díaz

doi:10.1590/s1984-29612014079

Cited by 25 publications

(33 citation statements)

References 45 publications

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“…The frequency of feline hemoplasma species found was similar to that found in client-owned cats, blood donor cats and unhealthy non-anemic cats (GENTILINI et al, 2009;MAHER et al, 2010;SANTOS et al, 2014;DUARTE et al, 2015). However, higher or lower rates of hemoplasma infection have been reported, depending on the diagnostic technique, geographical location and population studied.…”

Section: Discussionsupporting

confidence: 71%

“…However, higher or lower rates of hemoplasma infection have been reported, depending on the diagnostic technique, geographical location and population studied. 'Candidatus M. haemominutum' (11.7%) was the species most commonly detected in the cats of this study and in other studies (LAPPIN et al, 2006;GENTILINI et al, 2009;SANTOS et al, 2014). However, Mycoplasma species predominance can vary depending on the degree of pathogenicity among them as well as differences in the cat populations studied.…”

Section: Discussionmentioning

confidence: 40%

“…Corroborating our results, Hora (2008) did not observed association between age or breed with hemoplasma infection. On the other hand, several studies have reported that older cats are more likely to be infected with hemoplasmas (WILLI et al, 2006;SANTOS et al, 2014;VERGARA et al, 2016). This study shows that three hemotropic mycoplasma species occur in the metropolitan region of Rio de Janeiro and that 'Candidatus Mycoplasma haemominutum' is the most common agent infecting this cat population.…”

Section: Discussionmentioning

confidence: 99%

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Hematological changes associated with hemoplasma infection in cats in Rio de Janeiro, Brazil

Raimundo

Guimarães

Botelho

et al. 2016

Rev. Bras. Parasitol. Vet.

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This study aimed to detect Mycoplasma spp. in naturally infected cats from Rio de Janeiro and to evaluate hematological abnormalities and factors associated with this infection. Out of the 197 cats sampled, 11.2% presented structures compatible with hemoplasma organisms on blood smears. In contrast, 22.8% were positive for Mycoplasma spp. by means of 16S rRNA gene real-time polymerase chain reaction, which reflects the weak concordance between techniques. The infection rates, by means of 16S rRNA gene conventional polymerase chain reaction, was 4.6%, 4.6% and 11.7% for Mycoplasma haemofelis (Mhf), ‘Candidatus Mycoplasma turicensis’ (CMt) and ‘Candidatus Mycoplasma haemominutum’ (CMhm), respectively. Mhf and CMhm infections are more frequent in the summer (p>0.05). Presence of anemia (p < 0.02), lymphocytosis (p < 0.03), thrombocytopenia (p < 0.04) and activated monocytes (p < 0.04) was associated with Mhf infection. No hematological abnormality was associated with CMt or CMhm infection. Male cats were more prone to be infected by Mhf or CMhm (p < 0.01). Adult cats had more chance to be infected by CMhm. Three hemoplasma species occur in the metropolitan region of Rio de Janeiro and Mhf seems to be the most pathogenic of them. Anemia is the most important hematological abnormality.

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Section: Discussionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 40%

Section: Discussionmentioning

confidence: 99%

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Hematological changes associated with hemoplasma infection in cats in Rio de Janeiro, Brazil

Raimundo

Guimarães

Botelho

et al. 2016

Rev. Bras. Parasitol. Vet.

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“…This association could be explained because older animals have been more exposed to blood-sucking arthropods and to more aggressive interactions with other cats. Moreover, this association between hemoplasma infection and adult cats could be explained by the existence of carrier cats with a chronic infection as described previously [42].…”

Section: Discussionsupporting

confidence: 54%

Epidemiological study of hemotropic mycoplasmas (hemoplasmas) in cats from central Spain

et al. 2018

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BackgroundHemotropic mycoplasmas (hemoplasmas) have been found infecting cats worldwide. However, studies about feline hemoplasma infections in Spain are scarce. Therefore, the purpose of the research was to evaluate the prevalence of feline hemotropic mycoplasmas and to characterize risk factors and clinical findings associated with these infections in a cat population from the Madrid area, Spain.MethodsPolymerase chain reaction (PCR) was employed to detect Mycoplasma haemofelis (Mhf), “Candidatus Mycoplasma haemominutum” (CMhm) and “Candidatus Mycoplasma turicensis” (CMt) in blood samples from 456 client-owned and 138 stray cats from Madrid. In order to assess associations between these hemoplasma infections and epidemiological parameters, data regarding signalment, environment, prophylaxis measures, retrovirus status, clinical signs and laboratory findings were compiled, whenever possible.ResultsDNA of feline hemoplasmas was detected from the blood of 63 out of 594 cats (10.6%), with a prevalence of 3.7% (22/594) for Mhf, 8.1% (48/594) for CMhm and 0.5% (3/594) for CMt. Stray cats had statistically higher prevalences of feline hemoplasmas (15.9%) and, specifically, of Mhf (8.7%) than client-owned cats (9 and 2.2%, respectively). A total of seven cats (1.17%) were co-infected with “Candidatus M. haemominutum” and M. haemofelis, two (0.33%) with “Candidatus M. haemominutum” and “Candidatus M. turicensis” and another one (0.17%) with M. haemofelis and Candidatus “M. turicensis”. Male gender, collection of blood during warm months and FeLV/FIV positivity status were associated with hemotropic mycoplasma infection in cats from Madrid. Additionally, within the group of client-owned cats, hemoplasma infection was associated with adult age, outdoor access, and the existence of low haematocrit, erythrocyte count and haemoglobin concentration values.ConclusionsTo our knowledge, this is the first epidemiological survey of feline hemoplasmas performed in central Spain (Madrid). Our study confirms that “Ca. Mycoplasma haemominutum”, Mycoplasma haemofelis and “Ca. Mycoplasma turicensis” are infecting client-owned and stray cats in this region of Spain, “Ca. Mycoplasma haemominutum” being the most prevalent species. More studies are necessary to help understand the role of the natural infection by these species of hemoplasma in cats.

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“…However, 'Ca. M. haemominutum' has been shown to be non-pathogenetic (FOLEY et al, 1998;MACIEIRA et al, 2008), except in situations of coinfection (SANTOS et al, 2014). 'Ca.…”

Section: Introductionmentioning

confidence: 99%

Hemotropic mycoplasmas in naturally infected cats in Northeastern Brazil

Munhoz

Simões

Calazans

et al. 2018

Rev. Bras. Parasitol. Vet.

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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.

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Hemoplasma prevalence and hematological abnormalities associated with infection in three different cat populations from Southern Brazil

Cited by 25 publications

References 45 publications

Hematological changes associated with hemoplasma infection in cats in Rio de Janeiro, Brazil

Hematological changes associated with hemoplasma infection in cats in Rio de Janeiro, Brazil

Epidemiological study of hemotropic mycoplasmas (hemoplasmas) in cats from central Spain

Hemotropic mycoplasmas in naturally infected cats in Northeastern Brazil

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