Infectious disease issues in adoption of young children

Early-life influenza A (H1N1) infection independently programs brain connectivity, HPA AXIS and tissue-specific gene expression profiles

Early-life adversity covers a range of physical, social and environmental stressors. Acute viral infections in early life are a major source of such adversity and have been associated with a broad spectrum of later-life effects outside the immune system or "off-target". These include an altered hypothalamus-pituitary-adrenal (HPA) axis and metabolic reactions. Here, we used a murine post-natal day 14 (PND 14) Influenza A (H1N1) infection model and applied a semi-holistic approach including phenotypic measurements, gene expression arrays and diffusion neuroimaging techniques to investigate HPA axis dysregulation, energy metabolism and brain connectivity. By PND 56 the H1N1 infection had been resolved, and there was no residual gene expression signature of immune cell infiltration into the liver, adrenal gland or brain tissues examined nor of immune-related signalling. A resolved early-life H1N1 infection had sex-specific effects. We observed retarded growth of males and altered pre-stress (baseline) blood glucose and corticosterone levels at PND42 after the infection was resolved. Cerebral MRI scans identified reduced connectivity in the cortex, midbrain and cerebellum that were accompanied by tissue-specific gene expression signatures. Gene set enrichment analysis confirmed that these were tissue-specific changes with few common pathways. Early-life infection independently affected each of the systems and this was independent of HPA axis or immune perturbations.

Health status and nutritional development of adopted Ethiopian children living in southern Spain: A prospective cohort study

OBJECTIVE

The first aim of this study was to evaluate the health status and anthropometrical development of adopted children from Ethiopia living in southern Spain. A second aim was to evaluate the association between these parameters and adherence to the Mediterranean dietary pattern.

METHODS

The study sample included 53 adopted children from Ethiopia and a matched sample of 54 native-born children. A physical examination of the children, including height and weight, was conducted in Ethiopia at the time of entry into the adoption process. Height and weight were re-measured at the first day of adoption and 6, 12, and 24 mo after adoption. After 2 y of follow-up, another physical examination was performed, including the KIDMED test, to measure adherence to the Mediterranean diet.

RESULTS

Skin and digestive conditions were the most prevalent disorders in Ethiopian children before adoption and at the end of follow-up. Baseline anthropometric characteristics indicated a low wasting prevalence (7.5%); however, stunted growth was more prevalent (35.8%). After 6 mo, the weight-for-age of Ethiopian children was restored (change from baseline P < 0.001), and not significantly different from the Spanish children at 1-y after adoption. Height-for-age also increased from baseline (P < 0.001. A higher KIDMED score was associated with increased weight-for-age (r = 0.279; P = 0.045) and height-for-age (r = 0.385; P = 0.004).

CONCLUSIONS

This prospective study of adopted Ethiopian children confirmed a rapid growth development that occurred from the beginning of the adoption process and continued after the 2-y of follow-up. A higher adherence to the Mediterranean diet was associated with better growth development, which reinforces the importance of a balanced and adequate diet in growing children.

Pediatric Travelers and Immigrant Children

Children comprise a special group of international travelers. Immigrant and refugee children, along with children traveling to visit friends and relatives abroad or on leisure trips, require special attention by clinicians to prevent and treat travel-related conditions. [Pediatr Ann. 2019;48(9):e360-e369.].

Infectious Diseases in Internationally Adopted Children and Intercountry Discrepancies Among Screening Protocols, A Narrative Review

Internationally adopted children (IAC) require thorough health assessments at time of arrival in the host country. As these children are at higher risk for infectious diseases, such as gastrointestinal parasites, tuberculosis, hepatitis, syphilis, and human immunodeficiency virus, early diagnosis of infectious diseases is fundamental for the optimal management of the child and, also, to reduce the risk of transmission to the adopting community. Comparative analysis of the screening protocols adopted in Europe, the United States, and Canada revealed different approaches to the adopted children. A homogeneous and internationally shared standard of care in the management of IAC should be provided.

Clinical, virological and immunological features of HIV-positive children internationally adopted in France from 2005-2015

Objective(s)

To describe the clinical, virological and immune characteristics of internationally adopted children on arrival in France and after 6-months follow-up.

Design

Multicenter retrospective study.

Methods

30 centers from 24 cities were asked to include, after informed consent, HIV+ children living in France and internationally adopted between 1^st Jan 2005 and 1^st Jan 2015. Sociodemographic, medical and biological variables collected during the first medical evaluation in France and 6 months later were analyzed.

Results

41 HIV+ adoptees were included (female: 56%; median age: 3.91 years) in 14 centers. Adoptees tend to represent an increasing part of newly diagnosed HIV positive children over the years. The majority came from East-Asia. At arrival, one child was diagnosed with lymphobronchial tuberculosis and three with latent chronic hepatitis B, cleared HBV infection and chronic active hepatitis C, respectively. The mean CD4% was 32.8 ± 9% (range: 13–49%). The 34 children (83%) have been initiated on treatment from their countries of origin. Of these, 25 (74%) had an undetectable viral load (VL) on arrival. Resistance to ART was detected in five. At 6 months, 36 adoptees received ART, and the VL was undetectable in 29 children (71%), with one acquired resistance to NRTI & NNRTI.

Conclusions

An increasing number of HIV-infected children have been internationally adopted in France since 2005. Most of the children have been initiated on treatment from their countries of origin, had good immunity, with few opportunistic infections, and infrequently detectable VL. Low level of mutation conferring resistance was detected.

Italian multicentre study found infectious and vaccine-preventable diseases in children adopted from Africa and recommends prompt medical screening

AIM

This study evaluated the prevalence of infectious diseases and immunisation status of children adopted from Africa.

METHODS

We studied 762 African children referred to 11 Italian paediatric centres in 2009-2015. Clinical and laboratory data were retrospectively collected and analysed.

RESULTS

The median age of the children (60.3% males) was 3 years and 6 months, 52.6% came from Ethiopia and 50.1% had at least one infectious disease. Parasitic infections accounted for the majority of the infectious diseases (409 of 715), and the most common were Giardia lamblia (n = 239), Toxocara canis (n = 65) and skin infections (n = 205), notably Tinea capitis/corporis (n = 134) and Molluscum contagiosum (n = 56) Active tuberculosis (TB) was diagnosed in nine children (1.2%). Latent TB infections were diagnosed in 52 (6.8%) children, and only 23 had concordant positive tuberculin skin tests and Quantiferon Gold In-Tube results. Discordant results were associated with Bacille de Calmette-Guérin vaccinations (odd ratio 6.30 and 95% confidence interval of 1.01-39.20, p = 0.011). Nonprotective antitetanus or antihepatitis B antibody titres were documented in 266 (34.9%) and 396 (51.9%) of the 762 children.

CONCLUSION

The prevalence of infectious conditions and not-protective titres for vaccine-preventable diseases observed in our population underlines the need for prompt and complete medical screening of children adopted from Africa.

Internationally adopted children: not only infectious diseases!

Information on prevalence of special needs in internationally adopted children (IAC) is incomplete. We reviewed data from 422 IAC screened at a single Centre in Italy in 2015-16. Prevalence of special needs reached 17.1% (n = 72). Among these children, the most frequent conditions were fetal alcohol spectrum disorders (FASD; n = 30; 7.1%), cleft lip palate (n = 8; 1.9%) and other congenital malformations (n = 20; 4.7%). Worrisomely, 25 out of 52 (48.1%) Russian children presented with FASD.

Infectious diseases prevalence, vaccination coverage, and diagnostic challenges in a population of internationally adopted children referred to a Tertiary Care Children's Hospital from 2009 to 2015

Infectious diseases are common in internationally adopted children (IAC).With the objective to evaluate infectious diseases prevalence in a large cohort of IAC and to explore possible risk factors for tuberculosis (TB) and parasitic infections, clinical and laboratory data at first screening visit of all IAC (<18 years) consecutively referred to our Center in 2009 to 2015 were collected and analyzed.In total, 1612 children (median age: 5.40 years; interquartile range: 3.00-7.90) were enrolled, 123/1612 (7.60%) having medical conditions included in the special needs definition. The most frequent cutaneous infections were Molluscum contagiosum (42/1612; 2.60%) and Tinea capitis (37/1612; 2.30%). Viral hepatitis prevalence was <1% (hepatitis B virus [HBV]: 13 children, 0.80%; hepatitis C virus: 1 child, 0.10%; hepatitis A virus: 6 children, 0.40%). A parasitic infection was diagnosed in 372/1612 (23.10%) children. No risk factors for parasitosis were evidenced. Active TB was diagnosed in 4/1355 (0.3%) children, latent TB in 222/1355 (16.40%). Only 3.7% (51/1355) children had concordant positive tuberculin skin test (TST) and QuantiFERON-TB-Gold In-Tube (QFT-G-IT) results. Risk factors for TST+/QFT-G-IT- results were previous Bacille de Calmette-Guérin vaccination (adjusted odds ratio [aOR]: 2.18; 96% confidence interval [CI]: 1.26-3.79; P = 0.006), and age ≥5 years (aOR: 1.49; 95% CI: 1.06-2.11; P = 0.02). The proportion of children with nonprotective titers for vaccine-preventable diseases (VPD) ranged from 15.70% (208/1323) for tetanus to 35.10% (469/1337) for HBV.Infectious diseases were commonly observed in our cohort. The high rate of discordant TST/QFT-G results brings up questions regarding the optimal management of these children, and suggests that, at least in children older than 5 years, only QFT-G-IT results may be reliable. The low proportion of children protected for VPD, confirms importance of a timely screening.

Fever of Unknown Origin in Childhood

Childhood fever of unknown origin (FUO) is most often related to an underlying infection but can also be associated with a variety of neoplastic, rheumatologic, and inflammatory conditions. Repeated, focused reviews of patient history and physical examination are often helpful in suggesting a likely diagnosis. Diagnostic workup should be staged, usually leaving invasive testing for last. Advances in molecular genetic techniques have increased the importance of these assays in the diagnosis of FUO in children.

Discordances Between Serology and Culture for Strongyloides in an Ethiopian Adopted Child With Multiple Parasitic Infections: A Case Report

RATIONALE

infectious diseases screening of international adoptees is complex because of the concurrence of different pathogens in a child at same time. We describe an international adopted child born at Ethiopia infected by 5 different pathogens (Hymenolepis nana, Giardia intestinalis, Entamoeba histolytica, Strongyloides stercoralis, and Trichuris trichiura), 2 of them S. stercoralis and E. histolytica with a capacity to develop severe clinical complications if not detected promptly with appropriate diagnosis tests.Concerns of the patient: according to the screening protocol a stool sample is always processed for culture addressed to find out protozoan and helminthic pathogens but not specifically for S. stercoralis. Only, when eosinophilia is detected 3 serial stool samples are collected to rule out intestinal parasitic infection including S. stercoralis.

INTERVENTIONS

in our case, S. stercoralis would not have been detected if we had followed the protocol because eosinophilia was absent and its specific serology was negative. Fortunately, the initial inclusion of the feces charcoal culture for S. stercoralis allowed us to detect this infection.

OUTCOMES

discordances between direct methods such as culture and indirect as serology or antigen test forces us to be very cautious before ruling out S. stercoralis or E. histolytica infection, respectively. Also, if a child from tropical areas has persistent symptoms (such as diarrhea or fever) that have not been treated we have to rule out other infections that have not been detected yet.Main lessons: The introduction of different sequencing tests and the insistence to find out pathogens such as S. stercoralis or E. histolytica was determinant to be able to cure this symptomatic child and to prevent potential severe clinical forms in case of immunosuppression.

[Malaria and intestinal protozoa]

Malaria is life threatening and requires urgent diagnosis and treatment. Incidence and mortality are being reduced in endemic areas. Clinical features are unspecific so in imported cases it is vital the history of staying in a malarious area. The first line treatments for Plasmodium falciparum are artemisinin combination therapies, chloroquine in most non-falciparum and intravenous artesunate if any severity criteria. Human infections with intestinal protozoa are distributed worldwide with a high global morbid-mortality. They cause diarrhea and sometimes invasive disease, although most are asymptomatic. In our environment populations at higher risk are children, including adopted abroad, immune-suppressed, travelers, immigrants, people in contact with animals or who engage in oral-anal sex. Diagnostic microscopic examination has low sensitivity improving with antigen detection or molecular methods. Antiparasitic resistances are emerging lately.

[Motivations for a consultation before adoption: A multicenter study]

INTRODUCTION

While the number of international adoptions in France is decreasing, adopted children are older and in poorer health than they used to be. This phenomenon has resulted in an increase in the demand for preadoption consultations over the past several years. This study analyses the reasons for these consultations.

METHOD

Prospective multicenter study conducted from 1 January to 31 December 2013.

RESULTS

Ten centers contributed to the study, i.e., 196 preadoption consultations. Seeking medical advice was the reason for 88% of the consultations, whether the advice was based on the study of an identified child's medical file (32%) or a country's healthcare characteristics, whether the country was identified (34%) or not (23%). In 6% of cases, the motive for preadoption consultations was social and familial, and in the last 5% it was to obtain general information about adoption and its procedures. In more than 40% of the cases, whether the child or the country identified, Russia is the subject of the consultation because of the complexity of the files and because of the dreaded but rarely mentioned fetal alcohol syndrome.

CONCLUSION

The deterioration of adopted children's health is an additional worry for future adoption applicants. To provide them with the best information possible without making choices for them, specialists should have substantial experience in adoption before going into these preadoption consultations.

[International adoption from Ethiopia in a 5-year period]

INTRODUCTION

An increase in the number of internationally adopted children has been observed in the last few years. The country of origin that has experienced a greater increase is Ethiopia. The health of internationally adopted children from Ethiopia has not been extensively assessed to date. The main objective of the study is to determine the prevalence of infectious diseases in children adopted from Ethiopia, and to assess their nutritional status.

METHOD

A prospective, observational cohort study was conducted using the medical records of 251 children adopted from Ethiopia to Spain in the period from Jan 1, 2006 and December 31, 2010.

RESULTS

The mean age of the children was 7 months (range 1-120). Abnormalities were detected on physical examination in 56.6%. In 90% of cases the child was less than 5 years-old. Half of the sample had a weight below the third percentile, with some degree of malnutrition in 65% of the children. HIV exposure was not uncommon (4.8%).

CONCLUSIONS

Low weight and acute gastroenteritis were the main findings in this cohort. Infectious diseases should be systematically assessed.

Frequency and characteristics of infectious diseases in internationally adopted children: a retrospective study in Nantes from 2010 to 2012

BACKGROUND AND AIMS

Internationally adopted children are more susceptible to developing and carrying acute or chronic infectious diseases. Specialized consultations exist in the main French cities; however, specialized consultation with a pediatrician is not mandatory. The main objective of this study was to determine the frequency and characteristics of infections (bacterial, viral, and parasitic) among a group of international adoptees in Nantes over a 3-year period.

METHODS

A retrospective chart review was conducted of internationally adopted children who went through the Medical Guidance for Adopted Children Consultation between 2010 and 2012.

RESULTS

A total of 133 children were included in the study. Of these, 55% had an infectious disease; 8% were severe infections. We found a frequency of 38% [confidence interval (CI) 95% 30-46] for parasitic intestinal and 35% (CI 95% 27-43) for dermatologic infections. African children were more likely to have infections that required hospitalization [odds ratio (OR) = 12, p = 0.004, CI 95% 1.3-113.7] and more likely to carry extended-spectrum β-lactamase-producing bacteria.

CONCLUSION

The frequency of infectious diseases, and sometimes severe diseases, found among our cohort of internationally adopted children highlights the need for systematic, specialized medical care.