scholarly journals Human enterovirus infection in stray dogs. Some aspects of interest to public health

1996 ◽  
Vol 38 (2) ◽  
pp. 157-161 ◽  
Author(s):  
Eliseu Alves Waldman ◽  
Regina C. Moreira ◽  
Sueli G. Saez ◽  
Denise F.C. Souza ◽  
Rita de C.C. Carmona ◽  
...  
Keyword(s):  
Neutralizing Antibodies ◽  
Neutralizing Antibody ◽  
Human Enterovirus ◽  
Poliovirus Type ◽  
Stray Dogs ◽  
Wild Poliovirus ◽  
Antibody Titres ◽  
Global Eradication ◽  
Type 3 ◽  
Echovirus Type

To investigate the possible role of domestic animals as reservoirs of human enteroviruses, we studied 212 stray dogs captured in different areas of the municipality of São Paulo. The captured animals were divided into 19 groups of 10 to 20 dogs each; faeces of 126 of the 212 dogs were processed for enterovirus isolation. The following viruses were isolated from 12 dogs: poliovirus type 1 (2 dogs), poliovirus type 3 (1 dog), echovirus type 7 (8 dogs) and echovirus type 15 (1 dog). Of the 12 infected animals, four had specific homotypic neutralizing antibody titres > 16. All 212 animals were tested for the presence of neutralizing antibodies to human enteroviruses. The frequency of neutralizing antibodies present in titres of > 16 was 10.3%, 3,8% and 4.3% for vaccinal prototypes of polioviruses 1, 2 and 3 respectively; 1,9%, 1.4% and 1.5% for wild prototypes of the same viruses, 11.3% for echovirus 7, and 2.4% for echovirus 15. The proportion of dogs with neutralizing antibodies varied with the virus studied. Some indication of the susceptibility of dogs to infection with human enteroviruses was demonstrated, and the importance of this fact for the Plan for Global Eradication of the Wild Poliovirus is discussed.

scholarly journals Seroprevalence of antibodies to poliovirus in individuals living in Portugal, 2002

2007 ◽  
Vol 12 (6) ◽  
pp. 7-8 ◽  
Author(s):  
Marta Pires de Miranda ◽  
M Carmo Gomes ◽  
H Rebelo de Andrade
Keyword(s):  
Young Adults ◽  
Neutralizing Antibodies ◽  
Geometric Mean ◽  
Age Groups ◽  
Antibody Concentration ◽  
Antibody Prevalence ◽  
Poliovirus Type ◽  
Wild Poliovirus ◽  
Teenagers And Young Adults ◽  
Type 3

The last case of poliomyelitis in Portugal caused by indigenous wild poliovirus occurred in 1986 and the country was declared polio-free in 2002. High levels of immunity must be maintained to prevent the importation of wild poliovirus. In this study, we determined the immunity against poliomyelitis of the Portuguese population in order to identify possible immunity gaps. A representative sample of 1,133 individuals older than two years residing in mainland Portugal was studied. Logistical difficulties regarding quick sample transportation precluded the Portuguese islands (Madeira and the Azores) from this study. Sera were collected in 2002 from individuals attending health clinics throughout the 18 districts of Portugal. Levels of neutralizing antibodies against poliovirus types 1, 2 and 3 were determined and a titre of >= 1:8 was defined as indicative of protected immunity. Results were expressed in international units. The antibody prevalence and the geometric mean antibody concentration (GMAC) was 91.6% (GMAC: 2.96 IU/ml), 94.2% (GMAC: 5.03 IU/ml) and 75% (GMAC: 0.53 IU/ml) for poliovirus types 1, 2 and 3, respectively. For poliovirus types 1 and 2, antibody prevalence was close to or above 90% in the majority of age groups. For poliovirus type 3, antibody prevalence was below 80% in teenagers and young adults. Our study shows that the Portuguese are well protected against poliovirus types 1 and 2. For poliovirus type 3, the suboptimal antibody levels observed in teenagers and young adults suggest the need for a booster dose to minimise the risk of wild poliovirus importation.

Seropositivity and epidemiology of human parechovirus types 1, 3, and 6 in Japan

2016 ◽  
Vol 144 (16) ◽  
pp. 3451-3460 ◽  
Author(s):  
K. WATANABE ◽  
C. HIROKAWA ◽  
T. TAZAWA
Keyword(s):  
Neutralizing Antibodies ◽  
Respiratory Diseases ◽  
Clinical Symptoms ◽  
Age Groups ◽  
Gastrointestinal Symptoms ◽  
Neutralizing Antibody ◽  
Young Infants ◽  
Antibody Titres ◽  
Type 3 ◽  
Increased Susceptibility

SUMMARYHuman parechoviruses (HPeVs) mainly infect young children, causing mild gastrointestinal and respiratory diseases; however, HPeV type 3 (HPeV3) causes severe systemic diseases in young infants. To clarify the characteristics of HPeV infections from the aspects of seropositivity and epidemiology, we measured neutralizing antibody titres against HPeVs in individuals of in different age groups and isolated HPeVs from various clinical specimens in Niigata, Japan. The seropositivity to HPeV1, 3, and 6 was higher in older age group. HPeV1 and HPeV6 seropositivities were maintained in adults, whereas HPeV3 seropositivity was significantly lower in subjects aged >40 years (P < 0·001, P = 0·003). This result suggests that adults have increased susceptibility to HPeV3 as they lack neutralizing antibodies against HPeV3. Of the HPeV isolates, HPeV1 and HPeV6 frequently caused gastrointestinal symptoms. Moreover, gastroenteritis patients with HPeV1 and HPeV6 were mainly aged 6 months–1 year and ⩾2 years, respectively. In contrast, only HPeV3 was isolated from neonates and young infants with sepsis or sepsis-like syndrome, often with respiratory symptoms. These results suggest that clinical symptoms are clinically related to HPeV genotype and patients’ age.

scholarly journals Case of Poliomyelitis Caused by Significantly Diverged Derivative of the Poliovirus Type 3 Vaccine Sabin Strain Circulating in the Orphanage

Viruses ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 970
Author(s):  
Ekaterina A. Korotkova ◽  
Maria A. Prostova ◽  
Anatoly P. Gmyl ◽  
Liubov I. Kozlovskaya ◽  
Tatiana P. Eremeeva ◽  
...  
Keyword(s):  
Genome Sequencing ◽  
Mucosal Immunity ◽  
Neutralizing Antibodies ◽  
Oral Poliovirus Vaccine ◽  
Paralytic Poliomyelitis ◽  
Epidemiological Investigation ◽  
Poliovirus Type ◽  
Complete Rejection ◽  
Type 3

Significantly divergent polioviruses (VDPV) derived from the oral poliovirus vaccine (OPV) from Sabin strains, like wild polioviruses, are capable of prolonged transmission and neuropathology. This is mainly shown for VDPV type 2. Here we describe a molecular-epidemiological investigation of a case of VDPV type 3 circulation leading to paralytic poliomyelitis in a child in an orphanage, where OPV has not been used. Samples of feces and blood serum from the patient and 52 contacts from the same orphanage were collected twice and investigated. The complete genome sequencing was performed for five polioviruses isolated from the patient and three contact children. The level of divergence of the genomes of the isolates corresponded to approximately 9–10 months of evolution. The presence of 61 common substitutions in all isolates indicated a common intermediate progenitor. The possibility of VDPV3 transmission from the excretor to susceptible recipients (unvaccinated against polio or vaccinated with inactivated poliovirus vaccine, IPV) with subsequent circulation in a closed children’s group was demonstrated. The study of the blood sera of orphanage residents at least twice vaccinated with IPV revealed the absence of neutralizing antibodies against at least two poliovirus serotypes in almost 20% of children. Therefore, a complete rejection of OPV vaccination can lead to a critical decrease in collective immunity level. The development of new poliovirus vaccines that create mucosal immunity for the adequate replacement of OPV from Sabin strains is necessary.

Eradication of wild poliovirus type 3 may be within reach, say CDC and WHO

BMJ ◽  
2014 ◽  
Vol 349 (nov14 2) ◽  
pp. g6817-g6817 ◽  
Author(s):  
M. McCarthy
Keyword(s):  
Poliovirus Type ◽  
Wild Poliovirus ◽  
Type 3

scholarly journals Environmental Surveillance System To Track Wild Poliovirus Transmission

2003 ◽  
Vol 69 (5) ◽  
pp. 2919-2927 ◽  
Author(s):  
Jagadish M. Deshpande ◽  
Sushmitha J. Shetty ◽  
Zaeem A. Siddiqui
Keyword(s):  
Environmental Samples ◽  
Uttar Pradesh ◽  
Immunization Coverage ◽  
Paralytic Poliomyelitis ◽  
Nucleotide Sequence Analysis ◽  
Environmental Surveillance ◽  
Poliovirus Type ◽  
Wild Poliovirus ◽  
Supplementary Immunization Activities ◽  
Type 3

ABSTRACT Eradication of poliomyelitis from large metropolis cities in India has been difficult due to high population density and the presence of large urban slums. Three paralytic poliomyelitis cases were reported in Mumbai, India, in 1999 and 2000 in spite of high immunization coverage and good-quality supplementary immunization activities. We therefore established a systematic environmental surveillance study by weekly screening of sewage samples from three high-risk slum areas to detect the silent transmission of wild poliovirus. In 2001, from among the 137 sewage samples tested, wild poliovirus type 1 was isolated from 35 and wild poliovirus type 3 was isolated from 1. Acute flaccid paralysis (AFP) surveillance indicated one case of paralytic poliomyelitis from the city. Phylogenetic analysis with complete VP1 sequences revealed that the isolates from environmental samples belonged to four lineages of wild polioviruses recently isolated from poliomyelitis cases in Uttar Pradesh and not to those previously isolated from AFP cases in Mumbai. Wild poliovirus thus introduced caused one case of paralytic poliomyelitis. The virus was detected in environmental samples 3 months before. It was found that wild polioviruses introduced several times during the year circulated in Mumbai for a limited period before being eliminated. Environmental surveillance was found to be sensitive for the detection of wild poliovirus silent transmission. Nucleotide sequence analysis helped identify wild poliovirus reservoir areas.

scholarly journals Epidemic Kerato-Conjunctivitis—An Adenovirus Infection

1958 ◽  
Vol 56 (1) ◽  
pp. 101-107 ◽  
Author(s):  
R. G. Sommerville
Keyword(s):  
Technical Assistance ◽  
Specific Effect ◽  
Neutralizing Antibody ◽  
Adenovirus Type ◽  
Serological Examination ◽  
Central Public Health ◽  
Number Of Patients ◽  
Antibody Titres ◽  
Virus Research ◽  
Type 3

Two strains of adenovirus Type 3 were isolated from fifty-nine patients suffering from epidemic kerato-conjunctivitis. Serological examination of a further group of fifty-nine patients revealed that neutralizing antibody to adenovirus Type 8 usually developed when the duration of the disease exceeded 14 days, and that at the same time a smaller number of patients also developed low titre neutralizing antibody to Type 3 adenovirus. From the evidence presented it is suggested that adenovirus Type 8 was the infecting organism in the majority of cases, and that when neutralizing antibody to Types 3, 6 or 7 adenovirus was present this probably represented a non-specific effect of stimulation by a heterotypic strain of adenovirus. Insignificant antibody titres by C.F. tests were frequently associated with high titres of neutralizing antibody hi the late convalescent phase of the illness.I would like to express my gratitude for assistance in obtaining material for the investigation to the following clinicians: Dr J. Winning, Dr J. Marshall, Dr A. Mellick and Dr A. M. W. Thomson of the Eye Infirmary, Glasgow, and to Dr E. McNaught of the Ophthalmic Institution, Glasgow; for supplies of adenovirus seed to Dr B. E. Andrews, Central Public Health Laboratory, Colindale and Dr D. A. J. Tyrrell, Virus Research Laboratory, Sheffield; and for technical assistance to C. McLean, F.I.M.L.T., H. G. Carson, F.I.M.L.T. and J. Kerr.

scholarly journals Seroprevalence of polio antibodies in adult laboratory staff in South Africa, 2009 to 2013

2016 ◽  
Vol 31 (2) ◽  
pp. 57-60
Author(s):  
Shelina Moonsamy ◽  
Melinda Suchard
Keyword(s):  
South African ◽  
Communicable Diseases ◽  
World Health ◽  
Laboratory Staff ◽  
Population Immunity ◽  
Antibody Titres ◽  
Global Eradication ◽  
Health Organization ◽  
Type 3 ◽  
Health Programme

The global eradication of polio has been a World Health Organization goal since May 1988 with the current target for global eradication set at 2018. A keystone of the eradication initiative is achieving and maintaining high immunisation coverage, producing high population immunity. Assessing infant vaccination coverage does not give a reliable indication of adult immunity levels as antibody titres decline with age. A requirement of the occupational health programme at the National Institute for Communicable Diseases is to test newly appointed personnel for immunity to polio. During the period 2009 to 2013, 352 sera were collected and tested by means of antibody neutralisation assays to determine immunity to all three polio serotypes. The objective of this study was to assess immunity to polio in personnel employed at the National Institute for Communicable Diseases as a proxy for the general adult South African population. The seroprevalence to polio serotypes 1, 2 and 3 were 85.5, 90.0 and 74.0%, respectively. Of the 352 samples tested, 2.3% were sero-negative for all three serotypes and 36.0% were sero-negative to at least one of the serotypes. The seroprevalence to polio serotype 3 falls below the target of 80.0%, and could pose a potential risk following importation or development of vaccine derived poliovirus type 3.

scholarly journals Immunogenicity of Oral Polio Vaccine and Salk Inactive Polio Vaccine Against Xinjiang Imported Type 1 Wild Poliovirus

2019 ◽  
Vol 70 (9) ◽  
pp. 1980-1984 ◽  
Author(s):  
Dongmei Yan ◽  
Dongyan Wang ◽  
Shuangli Zhu ◽  
Yong Zhang ◽  
Xiaolei Li ◽  
...  
Keyword(s):  
Neutralizing Antibodies ◽  
Oral Polio Vaccine ◽  
Neutralizing Antibody ◽  
Genomic Sequencing ◽  
Outbreak Response ◽  
Local Immunity ◽  
Wild Poliovirus ◽  
Polio Vaccine ◽  
Antibody Titers

Abstract Background An outbreak of an imported Type 1 wild poliovirus from Pakistan occurred in the Xinjiang Uygur Autonomous Region of China in 2011, although the local immunity status of the oral polio vaccine (OPV) was relatively satisfied. Methods Neutralizing antibody titers against the Xinjiang strain and Sabin 1 strain were measured in 237 sera from 3 groups of fully OPV-vaccinated persons and 1 group of infants fully vaccinated with the inactive polio vaccine (IPV). Additionally, 17 sera collected from 1 Xinjiang poliomyelitis case and his 16 contacts were also tested. Genomic sequencing was conducted the Xinjiang strain. Results The antibody titers against the Xinjiang strain in each of 237 sera were significantly lower than those against the Sabin 1 strain. Notably, 40.0% of children in Group 1 were seronegative against the Xinjiang strain, which indicated that they might play an important role in wild poliovirus transmission, although their antibody titers against the Sabin 1 strain varied between 1:8 and 1:512. Meanwhile, serological results of the Xinjiang poliomyelitis case and his contacts also provided evidence that a proportion of OPV-vaccinated children had indeed been involved in the transmission chain of the Xinjiang outbreak. Genomic sequencing indicated that the Xinjiang strain was greatly distinguishable from the Sabin 1 strain in neutralizing antigenic sites. Conclusion The lack of neutralizing antibodies against the Xinjiang strain in persons vaccinated by OPV may be associated with the transmission of Type 1 wild poliovirus in Xinjiang. Using Salk IPV along with OPV might be considered in a wild poliovirus outbreak response, especially in the countries which continued to have persistent wild poliovirus circulation.

Serological cross-reactivity within the picornaviruses as studied by electron microscopy

1971 ◽  
Vol 17 (4) ◽  
pp. 477-480 ◽  
Author(s):  
R. K. Chaudhary ◽  
D. A. Kennedy ◽  
J. C. N. Westwood
Keyword(s):  
Adenovirus Type ◽  
Cross Reactivity ◽  
Antigenic Relationship ◽  
Electron Microscopic ◽  
Microscopic Method ◽  
Poliovirus Type ◽  
Type 3 ◽  
Echovirus Type ◽  
Electron Microscopic Method

A sensitive electron microscopic method has been developed to determine the antigenic relationship within the picornavirus group. Negatively stained mixtures of antigens (poliovirus type 1 and 3, echovirus type 9, and coxsackievirus type A9) and antibodies (poliovirus type 3 and echovirus type 9 antisera) were examined under the electron microscope. The results showed clumping of homologous and heterologous viruses with both antisera, which was considered as evidence of cross-reaction. The controls showed no clumping or attachment of antibody molecules. The significance of clumping was tested by treating adenovirus type 7 with the two test antisera.

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