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This paper describes the epidemiology, prevalence, transmission, prevention and control of some infectious diseases in companion animals, livestock, wild animals and humans in Ontario, Canada, in 2022, including SARS-CoV-2;Echinococcus multilocularis, Leishmania spp. and SARS-CoV-2;antimicrobial stewardship resources;2 cases of rabid dogs imported from Iran (July 2021 and January 2022);prevalence of extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriacea, Dirofilaria immitis, Brucella canis, canine parainfluenza and adeno- and herpes viruses in dogs recently imported from Asia;Paragonimus kellicotti lung flukes and Streptococcus equi subsp. zooepidemicus in dogs;African swine fever in pet pigs, backyard pigs and wild pigs and blastomycosis in dogs and humans.
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In 2021, the number of children who required PC for STH decreased for pre-SAC from 291.2 million to 260.6 million and for SAC from 732.3 million to 653.7 million (Figure 2). This change was mainly due to revision of the numbers of children who require PC for STH in India, which decreased from 103.5 to 80.7 million for pre-SAC and from 332.1 to 259.1 million for SAC. The decreases were based on impact assessment surveys conducted in the past few years, which changed the endemicity status of some districts. Globally, PC coverage of SAC increased from 47% in 2020 to 62.9% in 2021.The number of SAC reached with deworming increased almost to that before the COVID-19 pandemic (411 million in 2021, 344 million in 2020, 455.9 million in 2019), indicating that countries are recovering.
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The possession of exotic animals as pets is a social practice that has become more visible in Mexico in recent years, so it is interesting to understand its environmental and social implications and those related to human health. The present study aims to identify the main species of exotic animals kept as pets and the zoonotic diseases reported in these species. We analyzed official figures of seizures of exotic fauna in Mexico and reviewed specialized literature on zoonotic diseases documented in Mexico in these species. We identified zoonoses in species of fauna that can be acquired legally and illegally in the country, reported in environments in which animals coexist with other species and are in direct contact with people, which represents an important factor in the spread and propensity of this type of disease. We conclude that the sanitary regulation of wildlife markets, the monitoring and studying microorganisms associated with wildlife are valuable strategies to prevent the emergence of zoonoses.
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This paper describes the clinical signs and use of differential laboratory diagnostic techniques (computed tomography, cytology, histopathology, antigen/antibody detection and polymerase chain reaction) for infectious (viral, bacterial, fungal and parasitic) and non-infectious (inflammatory/immune mediated, neoplastic, cardiac, malformation, foreign body, smoke inhalation, aspiration of caustic material, non-cardiogenic, pulmonary oedema, traumativ, pneumothorax, pulmonary contusions and idiopathic) causes of respiratory diseases in cats and dogs in Ontario, Canada.
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This progress report provides an update on the progress made towards eliminating nnchocerciasis (river blindness) by the World Health Organization (WHO) as part of its road map on neglected tropical diseases for 2021-2030. The report highlights that the goal is to eliminate the need for mass drug administration of ivermectin in at least one focus in 34 countries by 2030, in more than 50% of the population in at least 16 countries and in the entire endemic population in at least 12 countries. However, challenges remain in achieving these goals, including incomplete mapping of all transmission zones, co-endemicity of onchocerciasis and loiasis, a potential decrease in sensitivity to ivermectin, uncoordinated cross-border work, suboptimal programme implementation and inadequate technical and financial resources. COVID-19 has also delayed national programmes, with millions of doses of preventive chemotherapy that should have been distributed expiring. The report also provides regional highlights, including that in 2021, 23 countries reported having treated a total of 142.3 million people for onchocerciasis, representing 58.1% of global coverage, and that the African region faces the greatest challenge with 99% of the global burden of the disease in this region.
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This article provides a brief overview of the 31st meeting of the International TaskForce for Disease Eradication (ITFDE) that was convened at The Carter Center in Atlanta, GA, USA on 20-21 October 2020 to discuss "The impact of the COVID-19 pandemic on eradication and elimination programmes and the way forward." It highlights the results of 7 eradication programmes, with specific conclusions and recommendations for each: Guinea Worm Eradication Programme(dracunculiasis;GWEP);Global Polio Eradication Initiative (GPEI);elimination programmes for measles and rubella (MR), malaria, river blindness (onchocerciasis;RB), and lymphatic filariasis (LF);and the program for the Global Elimination of Trachoma.
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This article describes how the COVID-19 pandemic significantly reduced provision of treatment in the Yanomami focus area (YFA) in 2020, especially in the Bolivarian Republic of Venezuela. The distribution of ivermectin for mass treatment (MDA) to prevent onchocerciasis was affected worldwide by the COVID-19 pandemic in 2020, as were MDA programs for other neglected tropical diseases (NTDs). On 1 April 2020, WHO recommended that mass treatment campaigns, active case-finding, and population-based surveys for NTDs be postponed until further notice to reduce the risk of COVID-19 transmission associated with large-scale community health interventions. The Carter Center, which provides major funding to MDA in the Bolivarian Republic of Venezuela, temporarily halted its activities in 2020 due to an administrative problem and, once the COVID-19 pandemic had taken hold, in order to adhere to WHO recommendations, its own policies, and the policies of other donor organizations. Ivermectin treatment continued to be offered in Brazil, supported by the government, with essential health services such as vaccination and malaria control. On 27 July 2021, WHO released new interim guidance for NTD programs. This included a risk-benefit analysis to figure out if activities could be resumed safely and detailed standards for reducing risk with all known precautions (such as wearing masks, socialdistance, hand sanitizing and/or handwashing, limiting live meetings and group size). The program in the Bolivarian Republic of Venezuela followed these instructions and made a plan to get back to work safely, which was what WHO wanted.
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This article describes the Global Programme to Eliminate Lymphatic Filariasis (GPELF), which aims to stop the spread of infection by mass drug administration (MDA) and ease the suffering of patients through morbidity management and disability prevention (MMDP). In 2020, LFMDA treated 21.6 million 2-4-year-olds and 98.5 million 5-14-year-olds. Given the impact of LF MDA on soil-transmitted helminth (STH) infections, WHO advises adding STH infection assessment into transmission assessment surveys (TAS) to increase NTD intervention efficiency. Once preTAS and TAS standards are met, an IU's population no longer needs MDA. 692 million people didn't need MDA. This 49% decline in LF cases is a huge step toward meeting the Sustainable Development Goal (SDG). Thirteen countries and 171 IUs performed TASs in 2020. A total of 4316 TAS have been conducted in EUs, which are greater or smaller than IUs. 100% of EUs passed a TAS, according to 2020 reports (the proportion of children who tested positive for LF infection was below the threshold for considering transmission unsustainable). Several 2020 TAS were postponed because to COVID-19 pandemic restrictions. Despite a global epidemic, GPELF achieved progress in 2020, demonstrating the resolve and inventiveness of national LFprogrammes to end this illness.
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In this report, four countries (Colombia, Ecuador, Guatemala, and Mexico) have completed the WHO-recommended process for verification of the interruption of human onchocerciasis transmission, and many others have ceased mass drug administration (MDA), completed post-treatment surveillance (PTS), or both in at least one transmission area on their territory. Interruption of transmission enabled governments to preserve the benefits acquired over many years of effective MDA with Ivermectin and to discontinue MDA permanently, thereby protecting populations living in endemic areas from morbidity and infection. The eradication of human onchocerciasis would contribute significantly to achieving Sustainable Development Goal (SDG) 3.3, which calls for the eradication of neglected tropical diseases (NTDs) by 2030. All countries endemic for onchocerciasis have reported instances of COVID-19. The impact of the pandemic on NTD interventions has been discussed elsewhere. In many countries, scheduled MDA rounds were postponed due to efforts to prevent the spread of SARS-CoV-2 in onchocerciasis-endemic nations. In 2020, 26.9% fewer patients were treated for onchocerciasis than in 2019. MDA was implemented in fewer nations and implementation units in 2020 (1096 versus 1538 in 2019), resulting in a 27.7% decrease in global geographical coverage. The WHO Global Health Observatory provides access to data submitted by governments.
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Objective: To investigate the prevalence and transmission of soil-transmitted helminth (STH) in Liaoning Province, in order to provide scientific evidence for development of control plans, strategies and measures aagainst these diseases in Liaoning Province.
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This second edition contains 24 new and updated chapters on aetiology, epidemiology, prevalence, pathogenesis, clinical signs, treatment, prevention and control of infectious diseases in cats, dogs and exotic small companion mammals in animal shelters. These include an introduction to infectious disease management in animal shelters, wellness, data surveillance, diagnostic testing, necropsy techniques, outbreak management, pharmacology, sanitation, canine and feline vaccinations and immunology, canine infectious respiratory disease, canine distemper virus, canine influenza, feline infectious respiratory disease, canine parvovirus and other canine enteropathogens, feline panleukopenia, feline coronavirus and feline infectious peritonitis, internal parasites, heartworm disease, external parasites, dermatophytoses, zoonoses, rabies, feline leukaemia and feline immunodeficiency viruses and conditions in exotic companion mammals (ferrets, rabbits, guineapigs and rodents). It is intended for shelter veterinarians, managers and workers.
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Exotic pest and disease investigations are managed and reported by the Ministry for Primary Industries' (MPI's) Diagnostic and Surveillance Directorate. This article presents a summary of investigations of suspect exotic and emerging pests and diseases in New Zealand during the period from July to September 2021.
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This article is a 2021 update on the WHO report on the impact of COVID-19 on neglected tropical diseases (NTD) and the response appropriated by the WHO. In January 2021, and after almost 2 years of wide-ranging consultations, WHO launched the new NTD roadmap for 2021-2030 that provides a framework and actions to drive progress towards a world free of NTDs, contributing during this decade to the attainment of the United Nations Sustainable Development Goals through: fundamental shifts that put countries, communities and people at the centre of the agenda;supportive cross-sectoral actions, such as health, education, nutrition, water, sanitation, and hygiene and;sustaining and accelerating progress towards the 2030 goals. Furthermore, the roadmap provides opportunities to evaluate, assess, and adjust programmatic actions, as and when needed, over the next decade by setting clear targets and milestones. Another distinct feature of this roadmap is to drive greater ownership by national and local governments, including communities. The overarching 2030 global targets are to: (1) reduce by 90% the number of people requiring interventions against NTDs;(2) have at least 100 countries having eliminated at least one NTD;(3) eradicate 2 diseases (dracunculiasis and yaws) and;(4) reduce by 75% the DALYs related to NTDs. The roadmap will enable future measuring of progress towards eradication, elimination and control of the 20 NTDs by tracking disease-specific targets. Additionally, the roadmap includes 10 cross-cutting targets relevant to progress in the areas of integration, multisectoral coordination, universal health coverage, and country ownership. Examples include a reduction by more than 75% in the number of deaths from vector-borne NTDs such as dengue and leishmaniasis;100% access to basic water supply, sanitation, and hygiene in areas endemic for NTDs;75% integrated treatment coverage index for preventive chemotherapy;90% countries including NTDs in their package of essential services, and 90% countries collecting and reporting NTD data disaggregated by gender.
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Objective: To understand and analyze the epidemic status and development trends of soil-transmitted nematodiasis in Guangxi Zhuang Autonomous Region (Guangxi), to provide scientific basis for formulating the disease control strategy, and evaluating the control effect.
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In October 2021 (from 00: 00, 1 October to 24: 00, 31 October), a total of 523 006 cases of notifiable communicable diseases, including 2 040 deaths, were reported in China (except Hong Kong, Macao Special Administrative Regions and Taiwan Province, the same below). In communicable diseases in class A, 2 cases of cholera were reported without death. In communicable diseases in class B, no cases and no deaths of severe acute respiratory syndrome, poliomyelitis, human infection with highly pathogenic avian influenza virus, diphtheria and human infection with avian influenza A (H7N9) virus were reported. For the remaining 22 communicable diseases in class B, 249 605 cases were reported, a decrease of 8% compared with last month (272 332 cases) and a decrease of 3% compared with the same period in 2020 (258 591 cases). The first 5 diseases in terms of reported case number were viral hepatitis, pulmonary tuberculosis, syphilis, gonorrhea and AIDS, accounting for 95% of the total reported cases in class B. A total of 2 039 deaths were reported, a decrease of 6% (133 deaths) compared with last month (2 172 deaths) and an increase of 17% compared with the same period in 2020 (1 737 deaths). According to the website of the National Health Commission of China, a total of 1 081 confirmed COVID-19 cases were reported, without death, by 31 provinces (municipalities, autonomous regions) and Xinjiang Production and Construction Corps from 00: 00, 1 October to 24: 00, 31 October, 2021. In class C communicable diseases, a total of 273 399 cases were reported, an increase of 20% compared with last month (228 597 cases) and a decrease of 13% compared with the same period in 2020 (315 366 cases). The first 3 diseases in terms of reported case number were hand foot and mouth disease (HFMD), other infectious diarrhea and influenza, accounting for 95% of the total reported cases in class C. Compared with last month, except filariasis which had no incidences in both months, the diseases with reported cases increases were HFMD (45 435 cases, 52%), influenza (17 811 cases, 50%) and rubella (11 cases, 12%), but the reported cases of other diseases all decreased, the diseases with obvious case decreases were other infectious diarrhea (16 519 cases, 18%), mumps (1 490 cases, 12%) and acute hemorrhagic conjunctivitis (327 cases, 14%). Compared with the same period in 2020, except filariasis which had no incidences in both years, the diseases with reported case increases were influenza (33 177 cases, 164%), typhus fever (15 cases, 9%), rubella (8 cases, 9%) and leprosy (3 cases, 17%), but the diseases with reported case decreases were HFMD (65 002 cases, 33%), other infectious diarrhea (4 111 cases, 5%) and mumps (1 574 cases, 12%). One death caused by class C communicable diseases was reported, an increase of 1 death compared with last month and a decrease of 1 death compared with the same period in 2020 (2 deaths).
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In September 2021 (from 00:00, 1 September to 24: 00, 30 September), a total of 500 929 cases of notifiable communicable diseases, including 2 172 deaths, were reported in China (except Hong Kong, Macao Special Administrative Regions and Taiwan Province, the same below). In communicable diseases in class A, no case and no death were reported. In communicable diseases in class B, no cases and no deaths of severe acute respiratory syndrome, poliomyelitis, human infection with highly pathogenic avian influenza virus, diphtheria and human infection with avian influenza A(H7N9) virus were reported. For the remaining 22 communicable diseases in class B, 272 332 cases were reported, a decrease of 0.9% compared with last month (274 917 cases) and a decrease of 5% compared with the same period in 2020 (287 923 cases). The first 5 diseases in terms of reported case number were viral hepatitis, pulmonary tuberculosis, syphilis, gonorrhea and brucellosis, accounting for 94% of the total reported cases in class B. A total of 2 172 deaths were reported, an increase of 5% (95 deaths) compared with last month (2 077 deaths) and a decrease of 5% compared with the same period in 2020 (2 291 deaths). According to the website of the National Health Commission of China, a total of 1 264 confirmed COVID-19 cases were reported, without death, by 31 provinces (municipalities, autonomous regions) and Xinjiang Production and Construction Corps from 00:00, 1 September to 24: 00, 30 September, 2021. In class C communicable diseases, a total of 228 597 cases were reported, an increase of 10% compared with last month (207 153 cases) and a decrease of 7% compared with the same period in 2020 (247 112 cases). The first 3 diseases in terms of reported case number were other infectious diarrhea, hand foot and mouth disease (HFMD) and influenza, accounting for 93% of the total reported cases in class C. Compared with last month, except filariasis, visceral leishmaniasis, leprosy and other infectious diarrhea which decreased by 1 case, 11 cases (39%), 12 cases (33%) and 12 747 cases (12%) respectively, the reported cases of all other diseases increased, the diseases with obvious case increases were HFMD (15 352 cases, 22%), influenza (14 160 cases, 66%) and mumps (4 253 cases, 51%). Compared with the same period in 2020, the diseases with reported case increases were influenza (17 269 cases, 95%), visceral leishmaniasis (4 cases, 31%), rubella (19 cases, 27%) and typhus fever (32 cases, 18%), filariasis had no incidences in both years, and the diseases with obvious reported case decreases were HFMD (26 506 cases, 23%). other infectious diarrhea (5 628 cases, 6%) and mumps (523 cases, 4%). No death caused by class C communicable diseases was reported, same to the last month and a decrease of 3 deaths compared with the same period in 2020 (3 deaths).
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The European Food Safety Authority (EFSA) and the European Centre for Disease Prevention and Control (ECDC) have published the EU One Health 2020 Zoonoses Report. Campylobacteriosis was the most reported zoonosis in the EU in 2020, with 120,946 cases compared to more than 220,000 the previous year. This was followed by salmonellosis, which affected 52,702 people, compared to 88,000 in 2019. The number of reported foodborne outbreaks fell by 47%, with the report acknowledging the impact of the COVID-19 pandemic in the drop in reported zoonotic diseases in humans. The next most commonly reported diseases were yersiniosis, with 5,668 cases, and infections caused by Shiga toxin-producing Escherichia coli, with 4,446 cases. Listeriosis was the fifth most reported zoonosis, mainly affecting people over the age of 64. Listeriosis and West Nile virus (WNV) infections were the diseases with the highest case fatality and hospitalisation rates, with most locally acquired human infections of WNV reported in Greece, Spain and Italy. The report also monitors foodborne outbreaks in the EU, events during which at least two people contract the same illness from the same contaminated food. A total of 3,086 foodborne outbreaks were reported in 2020, with Salmonella remaining the most frequently detected agent, causing around 23% of outbreaks. The most common sources of salmonellosis outbreaks were eggs, egg products and pig meat. The report also includes data on Mycobacterium bovis, Mycobacterium caprae, Brucella, Trichinella, Echinococcus, Toxoplasma gondii, rabies, Q fever and tularaemia.
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COVID-19, a disease induced by SARS-CoV-2, became a worldwide pandemic while SARS, a disease induced by a closely related virus, SARS-CoV, was successfully contained. This is because COVID-19, unlike SARS, can be spread by people who do not display any symptoms of disease, either because they are in the early stages of the infection or because their infection remains clinically silent. This research article traces the complex history of the diagnosis of symptom-free (or asymptomatic) carriers of pathogens, a term inseparably linked to the rise of the laboratory diagnosis of pathogens. Only such a diagnosis can reveal that an apparently healthy individual harbours dangerous bacteria, parasites, or viruses. The article begins with the iconic story of 'Typhoid Mary', a New York cook found to be an asymptomatic carrier of typhoid fever microbes. It then discusses divergent approaches to the treatment of symptom-free carriers of hookworm and controversies around the screening of HIV carriers, especially before the development of anti-retroviral treatments. It concludes with a presentation of the debates on the role of asymptomatic carriers in the spread of COVID-19 and of the differences between the approaches of countries seeking to eliminate this disease, a goal that itself entails tracing and isolation of all asymptomatic carriers of coronavirus, and those trying to contain it, an approach that tolerates the presence of a limited number of 'invisible' virus carriers.
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The family Enchelidiidae is recovered as monophyletic and appears to be a more recently derived taxon within the superfamily Oncholaimoidea. It combines nematodes with buccal cavity with three unequal teeth, crenate pharynx, and absence of demanian system. Genus Thoonchus was erected for nematodes characterized by the large buccal cavity with heavily cuticularized walls and several rows of denticles, short and arcuate spicules and gubernaculums with expanded corpus. One new species is described here from the Sishili Bay, located in the northern Yellow Sea. Thoonchus covidus sp. nov. is characterized by the body length 3195â4339 µm, outer labial and cephalic setae in one circle, pocket shaped amphid above the buccal cavity base, secretory-excretory pore at the base of cephalic setae, arched spicules, gubernaculum with thin proximal extension parallel to spicules, preanal supplement absent, three pairs of preanal papillae. It differs from other congeners by the position of secretory-excretory pore, absence of supplementary organ in males and presence of three pairs of precloacal papillae. Redescription of T. giganticus is also provided. After critical evaluation of the genus we recognize 4 valid species and provide a taxonomic key to species.