Objectives To summarize the major types of cluster infections of SARS-CoV-2 all over the
world through a comprehensive systematic review. Methods We searched all of the studies …

Background: Since December 29, 2019, pneumonia infection with 2019-nCoV has rapidly
spread out from Wuhan, Hubei Province, China to most others provinces and other counties. …

Urban areas are experiencing strongly increasing hot temperature extremes. However,
these urban heat events have seldom been the focus of traditional detection and attribution …

Rationale Several studies have estimated basic production number of novel coronavirus
pneumonia (NCP). However, the time-varying transmission dynamics of NCP during the …

This study aimed to estimate the attack rates, and identify the risk factors of COVID-19
infection. Based on a retrospective cohort study, we investigated 11,580 contacts of COVID-19 …

Background: Nonpharmaceutical interventions (NPIs) are public health measures that aim
to suppress the transmission of infectious diseases, including border restrictions, quarantine …

Heavy metals play an important role in inducing fine particulate matter (PM 2.5 ) related
cardiovascular disease (CVD). However, most of the past researches concerned the …

Background Although many studies have reported the mortality effect of temperature, there
were few studies on the mortality risk of humidity, let alone the joint effect of temperature and …

The self-reported infection rate, as determined from an online survey, reached its peak(15.5%)
between December 19 and 21, 2022, with an estimated 82.4% of individuals in China …

Although studies have investigated the associations between PM 2.5 and mortality risk,
evidence from rural areas is scarce. We aimed to compare the PM 2.5 -mortality associations …