Integrated bacterial transcriptome and host metabolome analysis reveals insights into " Liberibacter asiaticus" population dynamics in the fruit pith of three citrus cultivars with different tolerance.

" Liberibacter asiaticus" (CLas), the causal agent of citrus Huanglongbing (HLB), is able to multiply to a high abundance in citrus fruit pith. However, little is known about the biological processes and phytochemical substances that are vital for CLas colonization and growth in fruit pith. In this study, CLas-infected fruit pith of three citrus cultivars ("Shatangju" mandarin, "Guanxi" pomelo, and "Shatian" pomelo) exhibiting different tolerance to CLas were collected and used for dual RNA-Seq and untargeted metabolome analysis.

Comparison of text messaging data collection vs face-to-face interviews for public health surveys: a cluster randomized crossover study of care-seeking for childhood pneumonia and diarrhoea in rural China.

Background: To compare text messaging and face-to-face interviews to conduct a survey on childhood diarrhoea and pneumonia.

Methods: Caregivers of young children able to send text messages in Zhao County in rural China were included in this crossover study. Villages (clusters) were randomized into two groups using the ratio 1:1.

Monitoring and evaluating the adherence to a complementary food supplement (Ying Yang Bao) among young children in rural Qinghai, China: a mixed methods evaluation study.

Background: Large investments are currently made in community-based complementary food supplement (Ying Yang Bao, YYB) programs to improve nutrition of young children in rural areas in China. However, there is a lack of knowledge about the experience and challenges of implementing YYB programs in China. We aimed to: 1) monitor distribution of YYB; 2) assess children's adherence to and acceptability of YYB; and 3) evaluate community-based strategies to improve the program.

Effectiveness of a smartphone app on improving immunization of children in rural Sichuan Province, China: a cluster randomized controlled trial.

Background: The aim of this study was to assess the effectiveness of an EPI smartphone application (EPI app) on improving vaccination coverage in rural Sichuan Province, China.

Methods: This matched-pair cluster randomized controlled study included 32 village doctors, matched in 16 pairs, and took place from 2013 to 2015. Village doctors in the intervention group used the EPI app and reminder text messages while village doctors in the control group used their usual procedures and text messages.

Prevalence of mobile phones and factors influencing usage by caregivers of young children in daily life and for health care in rural China: a mixed methods study.

Introduction: To capitalise on mHealth, we need to understand the use of mobile phones both in daily life and for health care.

Objective: To assess the prevalence and factors that influence usage of mobile phones by caregivers of young children.

Materials And Methods: A mixed methods approach was used, whereby a survey (N=1854) and semi-structured interviews (N=17) were conducted concurrently.

Increasing the response rate of text messaging data collection: a delayed randomized controlled trial.

Objective: To test the effectiveness of multiple interventions on increasing the response rate of text messaging for longitudinal data collection.

Methods: Our cohort included 283 caregivers of children aged 6-12 months who were participating in an anemia program in rural China. Using text messages to collect data on anemia medication adherence, we conducted a delayed randomized controlled trial to test multiple interventions (an additional four reminders; a ¥5.

Effectiveness of a smart phone app on improving immunization of children in rural Sichuan Province, China: study protocol for a paired cluster randomized controlled trial.

Background: Although good progress has been achieved in expanding immunization of children in China, disparities exist across different provinces. Information gaps both from the service supply and demand sides hinder timely vaccination of children in rural areas. The rapid development of mobile health technology (mHealth) provides unprecedented opportunities for improving health services and reaching underserved populations.

Coverage, quality of and barriers to postnatal care in rural Hebei, China: a mixed method study.

Background: Postnatal care is an important link in the continuum of care for maternal and child health. However, coverage and quality of postnatal care are poor in low- and middle-income countries. In 2009, the Chinese government set a policy providing free postnatal care services to all mothers and their newborns in China.

mHealth Series: Factors influencing sample size calculations for mHealth-based studies - A mixed methods study in rural China.

Background: An important issue for mHealth evaluation is the lack of information for sample size calculations.

Objective: To explore factors that influence sample size calculations for mHealth-based studies and to suggest strategies for increasing the participation rate.

Methods: We explored factors influencing recruitment and follow-up of participants (caregivers of children) in an mHealth text messaging data collection cross-over study.

mHealth Series: Text messaging data collection of infant and young child feeding practice in rural China - a feasibility study.

Background: Face-to-face interviews by trained field workers are commonly used in household surveys. However, this data collection method is labor-intensive, time-consuming, expensive, prone to interviewer and recall bias and not easily scalable to increase sample representativeness.

Objective: To explore the feasibility of using text messaging to collect information on infant and young child feeding practice in rural China.

mHealth Series: Measuring maternal newborn and child health coverage by text messaging - a county-level model for China.

Background: Effective interventions in maternal, newborn and child health (MNCH), if achieving high level of population coverage, could prevent most of deaths in children under five years of age. High-quality measurements of MNCH coverage are essential for tracking progress and making evidence-based decisions.

Methods: MNCH coverage data are mainly collected through fieldworkers' interview with preselected households in standard programs of Demographic and Health Surveys (DHS) or Multiple Indicator Cluster Surveys (MICS) in most low- and middle-income countries.

mHealth Series: mHealth project in Zhao County, rural China - Description of objectives, field site and methods.

Background: We set up a collaboration between researchers in China and the UK that aimed to explore the use of mHealth in China. This is the first paper in a series of papers on a large mHealth project part of this collaboration. This paper included the aims and objectives of the mHealth project, our field site, and the detailed methods of two studies.

Text messaging data collection for monitoring an infant feeding intervention program in rural China: feasibility study.

Background: An effective data collection method is crucial for high quality monitoring of health interventions. The traditional face-to-face data collection method is labor intensive, expensive, and time consuming. With the rapid increase of mobile phone subscribers, text messaging has the potential to be used for evaluation of population health interventions in rural China.