The two main reasons for infectious diseases among humans are bacteria and viruses. One gets affected by these diseases through various means:.Follow The New Indian Express channel on WhatsApp Download the TNIE app to stay with us and follow the latest
The two main reasons for infectious diseases among humans are bacteria and viruses. One gets affected by these diseases through various means:.Follow The New Indian Express channel on WhatsApp Download the TNIE app to stay with us and follow the latest