Congo (DRC):

Polio cases Since May 2017, at least ten cases of polio infection with circulating vaccine-derived poliovirus type 2 (cVDPV2) have been confirmed. The most recent case in Tanganika province had onset of paralysis on 14 September, and is related to the ongoing outbreak in Haut-Lomani province. There is a separate outbreak of cVDPV2 strain in Maniema province The cVDPV strain can emerge in under-vaccinated populations. Cases of wild polio virus have not been recorded in the country since late 2011. Polio is a contagious viral illness that causes paralysis and death. The infection is spread through ingestion of contaminated food or water, or directly from an infected person….. Surveillance has been increased and vaccination campaigns are being conducted to limit the spread of disease

China: Poor air quality at several locations, orange alert for Beijing The Beijing Municipal Environmental Protection Bureau has announced an orange alert for air pollution in Beijing effective from 4 to 8 November. China has a four-tiered air pollution response system and orange is the second highest alert level. At these levels of pollution everyone is likely to experience symptoms. Authorities respond to the situation by imposing restrictions on construction, industrial operation and movement of vehicles. The general public is advised to reduce outdoor activities.

The other areas likely to be affected are Tianjin and the northern province of Hebei

More details can be found below: